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Tag: Cold Cases

  • How a missing Colorado woman’s son hopes AI can solve her 18-year-old cold case

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    Shaida Ghaemi was last seen Sept. 9, 2007, in Wheat Ridge. (Photo courtesy Colorado Bureau of Investigation)

    Arash Ghaemi has wondered for 18 years what happened to his mother after she disappeared from a Wheat Ridge motel.

    So Ghaemi, an artificial intelligence developer and entrepreneur, turned his profession into his passion.

    “What if I can get the case files and run it through AI?” he said of the police investigation into his mother’s disappearance. “Maybe it will show me something and make the connections. If I could build it to solve my mom’s case, I could likely build it to solve other cases.”

    Ghaemi launched CrimeOwl, an AI program that searches cold-case files to generate new leads for investigators, last year.

    So far, the AI platform is in the hands of a few private investigators who are using it to chase leads on behalf of families searching for missing loved ones. Ghaemi hopes one day the program will have its big break in solving a case, and maybe — just maybe — it will help figure out what happened to his mother, Shaida Ghaemi, when she disappeared in 2007.

    Ghaemi, who goes by “Ash,” on Tuesday met with investigators, information-technology staff and commanders at the Wheat Ridge Police Department to show off his AI tool and to ask for an update on his mother’s case.

    For now, Wheat Ridge police say CrimeOwl is too unproven to use in the department’s investigations, including Shaida Ghaemi’s disappearance.

    And they are tight-lipped about her case.

    “We were really happy to meet with Ash. It’s part of our philosophy of relationship policing,” said Alex Rose, a Wheat Ridge police spokesman. “It was a twofold meeting to explain what we could about the case and to give some professional insight on the AI tool so it can become more widespread and of use to agencies across the country.”

    ‘Still trying to make sense of it’

    When Arash Ghaemi was growing up, his mother was almost too good a mother, he said, describing her as “almost overbearing” in taking care of him and his older sister.

    But when Arash was 17, his parents divorced, and everything changed.

    Shaida Ghaemi became distant from her children. She left home a lot.

    “It was weird,” he said. “She went from always needing to be in contact with me and my sister to she could take it or leave it.”

    Shaida Ghaemi did not have a permanent home and did not have a job, her son, now 40, said. She traveled between Colorado and Maryland, where her parents lived.

    In 2007 — five years after the divorce — she moved into the American Motel in Wheat Ridge with her boyfriend, Jude Peters.

    “I am still trying to make sense of it,” he said of the changes in his mother’s behavior.

    Arash Ghaemi was a 22-year-old server at a Red Robin restaurant in Highlands Ranch when his grandfather called from Maryland on a September night and told him they were unable to reach his mother. He asked his grandson to call the police.

    Shaida Ghaemi, then 44, was last seen on Sept. 9, 2007, by Peters. Drops of her blood were found in their motel room. At the time, Peters told 9News it was menstrual blood and that Ghaemi often left for months at a time.

    Wheat Ridge police still consider her disappearance a missing-person case, and there is no “clear indication of foul play,” Rose said. “Jude is not considered a person of interest in this investigation at this time,” Rose said of Peters.

    “They still don’t know where she’s at and they don’t have any trace of her,” Ghaemi said.

    ‘True value’ of AI

    Artificial intelligence is gaining ground as a law enforcement tool. Multiple police departments across Colorado are using the technology, most commonly for converting body-worn camera footage into written crime reports. It’s also being used to track license plates and to scan people’s faces.

    The Wheat Ridge Police Department uses Axon’s Draft One to help write police reports, based on their body-worn camera footage.

    “Our officers know they’re accountable for every single word,” Rose said. “It gives them a who, what, when and where and can save them time, but it’s not a substitution for good police work.”

    Ghaemi launched CrimeOwl about six months ago. He is also developing AI programs for the dental industry and a new sports statistics program that could eventually be used by the NBA.

    He programmed CrimeOwl to sort through all of the documents in a case file and build a map of the people connected to the missing person, such as partners, family, close friends and neighbors. The AI also creates a timeline of events leading to the disappearance or death and then maps all of the geographic locations connected to the crime, he said.

    The platform has a chat function so investigators can ask the AI to sift through files to find answers to their questions.

    While CrimeOwl was designed to help with missing-persons cases, Ghaemi said he hopes it can be used to solve other crimes.

    No police departments have bought the product so far.

    Ghaemi, who lives in Miami, said he tested CrimeOwl on a solved cold case in Florida and, after uploading the police case file into his program, the AI created a list of credible suspects within 30 minutes, he said. Police confirmed it had identified the actual perpetrator, he said.

    “It took me 30 minutes to do what it could have taken them weeks or months to do,” Ghaemi said. “That’s the true value here.”

    Not ready for police use

    CrimeOwl, however, is not ready for active law enforcement investigations, Rose said.

    The CrimeOwl platform would need to be secure so no one could tamper with the evidence once it is uploaded, Rose said. It would need to receive various certifications before any law enforcement agency used it, he said.

    It would also need to be vetted by lawyers so any leads it generated would hold up at trial, he said.

    “There are a lot of details and a lot of hypotheticals that would need to be heavily vetted for AI technology in a real-world police setting,” Rose said.

    Still, Wheat Ridge police are intrigued by Ghaemi’s AI tool and were more than willing to offer advice and expertise, he said.

    “We’re always going to applaud somebody who is trying to use technology to find ways to help,” Rose said.

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  • New ‘American Nightmares’ podcast episodes reveal mystery behind Bowie woman’s murder in 1998 – WTOP News

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    The Sherry Crandell case was the focus of Season 2 of WTOP’s American Nightmares podcast. Paul Wagner revisits the case from his perspective.

    Paul Wagner, the host of WTOP’s American Nightmare series podcast, ‘Murder in a Safe Place,’ speaks with WTOP anchors John Aaron and Michelle Basch about the Sherry Crandell case.

    Editor’s Note: The murder of Sherry Crandell was the focus of Season 2 of WTOP’s American Nightmares podcast. Host Paul Wagner has just released two new episodes in the wake of the case being solved. The episodes contain exclusive interviews with the local detectives and FBI agents who solved the case, and reaction from Crandell’s three children. Listen to the podcast now on all podcast platforms, including Apple and Spotify

    One day a few years ago, I picked up the newspaper and, as I was thumbing through it, landed on the astrology page.

    I don’t normally look at it, but it happened to be my birthday and my horoscope said, “You’ll be doing some sleuthing. There is a mystery you’re determined to solve.”

    Well, that fit like a glove. I immediately inserted the quote on top of my X profile page, where it sits to this day.

    I love a challenging mystery and cold case homicides are the lifeblood of my career.

    In 1981, right out of college, I came to D.C. determined to be a reporter. It took me a while to get my feet on the ground, but I eventually landed in a place that would let me ply my trade — telling stories that mattered, mysteries that had baffled detectives and left grieving families looking for answers.

    That’s when I met Tiffany Crandell and Detective Bernie Nelson. It was 2003, and I profiled the murder of Tiffany’s mother, Sherry Crandell, in a feature on Fox 5 in D.C. So many things stuck with me from that case; police had DNA recovered from the crime scene but couldn’t link it to anyone.

    I put a spotlight on the case again in 2014 on the same station, but despite my hopes that someone would come forward with new information, nobody did.

    By 2020, I had moved on from my job at Fox 5 and began thinking of telling Sherry’s story on a podcast. I hadn’t spoken to Tiffany in quite some time, but she was on board when I reached out and told her my idea.

    Her brother Darren, though, pushed back. He was worried about social media and the mean things people might say. He didn’t want to do it. But after talking with Tiffany, Darren eventually came around to the idea and agreed to take part. Luke, the youngest member of the family, was also on board.

    Detective Bernie Nelson, the lead investigator on the case, also needed convincing. He was skeptical, had never listened to a podcast and wondered who the audience would be.

    Eventually, Bernie came around and convinced his supervisors at the Prince George’s County Police Department it was worth a shot. The department agreed to cooperate and I began to dig in on a case that had shadowed me since 2003.

    Jaw-dropping new information

    I spent the summer of 2020 gathering interviews and writing the story. The first thing I learned was, that year, the department had decided to try and solve the case using genetic genealogy. The second thing I learned made my jaw drop.

    For more than 20 years, the police had kept a secret; there was a witness to the crime. A member of the cleaning crew walked in on the attack after hearing screams coming from Sherry’s office.

    The witness, Edna Brown, died well before I had a chance to interview her myself, but police had her statement and a description of the killer on videotape. Detective Nelson let me use it in the podcast.

    Edna told investigators the man who raped and strangled Sherry was wearing a white lab jacket and had a stethoscope in his pocket. She said he was a man in his 40s with gray hair on top. She didn’t know if the man was hurting Sherry or helping her, so she kept quiet. Another member of the cleaning crew walked into Sherry’s office and called for help.

    The story had legs. As I dug deeper, I found people who were willing to tell me about the DNA dragnet the police carried out at the hospital. Figuring the killer must have some connection to the hospital, Nelson and a squad of investigators began asking all the men who worked there to voluntarily provide a sample of their DNA.

    It was controversial, and it didn’t move the case forward. The killer would remain unknown for years to come.

    After partnering with WTOP and editing six episodes, with the help of WTOP Director of News and Programming Julia Ziegler, we had a heck of a story to tell. “Murder in a Safe Place” launched in February 2021 and immediately became a top podcast on Apple.

    After the first episode aired, I got a call from Tiffany, who told me she and her two brothers would like to meet with me. They were pleased with how the story turned out and wanted to thank me. So in the winter of 2021, at a restaurant in downtown Bethesda, I sat with the Crandell kids and talked for a while before Tiffany handed me a gift bag.

    Inside was a thank you card and a figurine in the shape of a guardian angel. Other families had thanked me for telling their stories over the years, but I had never received anything like this.

    That angel sits on my desk to this day.

    When Nelson called in November to tell me police were closing the “hospital case,” I felt a wave of emotion. I was happy for him, the most dogged detective I had ever known, that his work paid off after 27 years of nothing after nothing after nothing.

    His decision to use genetic genealogy paid off. A team of genealogists from the FBI and Prince George’s County police solved the case. That process took five years, but the Crandells finally had an answer.

    Baari Shabazz, a man who died in 2019, was positively identified as Sherry’s killer. The definitive link came from a close family relative whose DNA provided the key to the case.

    The FBI team told the Crandells they were “energized” by the podcast. When the search looked grim and the team had hit a brick wall, they would think about Sherry and her kids.

    When I met with FBI special agent Mark James and analyst Stephanie Mellinger, they also told me the podcast inspired them to keep going, keep reading obituaries and eliminating people from the family tree until they had their suspect.

    It was gratifying, but as I sit here today, on the anniversary of Sherry’s death, I’m thankful for everyone who worked on the case. A “ton” of people, Nelson said, were determined to find answers.

    Families will tell you it’s the not knowing that gnaws at you: Who did this? Why? What kind of person would do something so vicious?

    After 28 years, the Crandells finally have some of those answers.

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    © 2026 WTOP. All Rights Reserved. This website is not intended for users located within the European Economic Area.

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    Thomas Robertson

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  • ‘Identify the worst of the worst’: How DNA helped solve a cold case in Prince George’s County – WTOP News

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    Genetic genealogy helps solve cold cases, and the Prince George’s County Police Department used federal funds dedicated to it to solve the Sherry Crandell case.

    It took nearly 28 years for police in Prince George’s County, Maryland, to determine the identity of the man detectives say killed 50-year-old Sherry Crandell back in 1998.

    The case had gone cold until a few years ago, when the department turned to what’s known as “genetic genealogy” in the hopes of using DNA taken from the crime scene to look for new leads.

    “Its effectiveness has led to the Department of Justice, basically expanding its grant programs so that local law enforcement can take advantage of this process, because it’s an expensive process,” said Robert Dean, a special assistant state’s attorney in Prince George’s County. “The actual laboratory work, a lot of that is done by private labs, and they charge.”

    Typically, a case costs between $30,000 to $60,000. Prince George’s County applied for and was awarded a $500,000 grant in 2020 to help solve cases such as the Crandell case.

    “I’m proud to say that this was the first case that was submitted for testing,” said County Executive Aisha Braveboy, who was the county’s top prosecutor at the time the grant application was submitted.

    The closest genetic hit that investigators got came from a fourth cousin of the suspect. The FBI has also started providing local departments with greater resources, especially on the genealogical side.

    “Our investigative genetic genealogy team started working Sherry’s case four years ago,” said Jimmy Paul, special agent in charge of the FBI’s Baltimore Field Office. “They kept at it, following lead after lead, a thorough, detailed and time consuming process, which finally paid off this year.”

    It’s a process that’s worthwhile, he added.

    “Through investigative genetic genealogy, investigators are able to solve the worst of the worst crimes and identify the worst of the worst criminals, even when decades have passed since the crimes took place,” Paul said.

    Millions of federal grant dollars are now available to departments that apply for them to solve cases with genetic genealogy. Dean said without that support, the Crandell case would not yet be solved.

    “It would have taken longer. So maybe we would be talking, instead of four years after this grant was available, maybe eight years,” he said. “The technology is there, but accessing the technology does cost money.”

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    © 2025 WTOP. All Rights Reserved. This website is not intended for users located within the European Economic Area.

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    John Domen

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  • Tip leads to arrest in cold case killing of off-duty DC police officer in Baltimore – WTOP News

    Tip leads to arrest in cold case killing of off-duty DC police officer in Baltimore – WTOP News

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    Baltimore prosecutors on Wednesday announced the arrest of a man in the cold case homicide of an off-duty Washington, D.C., police officer in 2017.

    Officer Tony Anthony Mason Jr., 40, was shot and killed in Baltimore. (Courtesy D.C. Police Union)(Courtesy D.C. Police Union )

    BALTIMORE (AP) — Baltimore prosecutors on Wednesday announced the arrest of a man in the cold case homicide of an off-duty Washington, D.C., police officer in 2017.

    The officer, Sgt. Tony Anthony Mason Jr., was shot to death while sitting in a parked car with a woman he had been dating, according to police. She was also shot but survived.

    The case sat unsolved for five years until detectives received a tip in early 2023 that reinvigorated their investigation and led to charges against Dion Thompson, 24, prosecutors said in a news release Wednesday. Thompson, who was 18 at the time of the shooting, is currently serving time in a federal prison on unrelated drug and gun charges.

    An attorney representing Thompson in that case didn’t immediately respond to a request for comment Wednesday afternoon.

    His charging documents in the 2017 shooting don’t include a clear statement of motive and they’re based almost entirely on the account of someone who knew Thompson but didn’t directly witness the crime. The person said Thompson admitted to shooting up a parked car because as he was leaving his friend’s grandmother’s house, he spotted a vehicle whose occupants he didn’t recognize and became paranoid, assuming they “were there to either rob him or retaliate against him for all the robberies he was committing,” according to the charging documents.

    Thompson learned later from watching the news that the victim was an off-duty police officer, the witness told detectives. Thompson then drove to Philadelphia to get rid of the vehicle he was driving the night of the shooting, prosecutors allege.

    The charging documents reference two other people who were allegedly involved in the shooting. One later died in a car crash. Officials said no one else has yet been charged in the case.

    Mason, 40, was a 17-year veteran of Washington’s Metropolitan Police Department.

    Detectives noted that he was unarmed during the attack and wasn’t wearing any clothing to identify himself as a law enforcement officer. They said extensive background checks for both Mason and his companion turned up no signs of criminal or gang activity.

    “For far too long, the details surrounding Sergeant Mason’s tragic death have remained a painful mystery,” said Metropolitan Police Department Chief Pamela Smith. “While we cannot erase the pain of loss or the memories of that day, we can take solace in the fact that the person responsible is being brought to justice.”

    Baltimore State’s Attorney Ivan Bates said this will be the first prosecution brought by his office’s new cold case unit.

    Copyright
    © 2024 The Associated Press. All rights reserved. This material may not be published, broadcast, written or redistributed.

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    WTOP Staff

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  • Man Charged In 1993 Killing Of 12-Year-Old Girl Who Disappeared From School Bus

    Man Charged In 1993 Killing Of 12-Year-Old Girl Who Disappeared From School Bus

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    ST. PETERSBURG, Fla. (AP) — For three decades, nobody knew for certain what happened to 12-year-old Jennifer Odom after she got off a school bus on a typical day in 1993. The girl was found dead in a Florida orange grove not long after.

    Now, authorities in Hernando County say a DNA match has identified her killer as Jeffrey Norman Crum, 61, who is already serving two life sentences for a 2015 sexual battery and attempted murder conviction. State Attorney Bill Gladson said Thursday prosecutors will seek the death penalty in the Odom case.

    “This is every parent’s nightmare,” Gladson said at a news conference in Brooksville, a city of about 7,000 people roughly 50 miles (80 kilometers) north of Tampa. “I have confidence we have the right person and we have the right aggravators in this particular case to treat it as a death penalty case.”

    Jennifer Odom

    Hernando County Sheriff’s Office

    A grand jury indicted Crum on first-degree murder, kidnapping and sexual battery charges, Gladson added. It wasn’t immediately clear if Crum had a lawyer to speak for him about the case.

    Hernando County Sheriff Al Nienhuis said detectives never stopped working on the case even as the decades passed.

    “I can tell you the investigation never stopped,” Nienhuis said.

    On Feb. 19, 1993, the day she disappeared, Jennifer got off her school bus at around 3 p.m. in Pasco County, just south of Hernando County. She waved to her friends and began walking the roughly 200-yard (183-meter) distance to her home, but she never made it.

    Children who were on the bus told investigators they saw a faded blue pickup truck slowly following Jennifer as she walked home. Six days after she disappeared, her body was found in an orange grove in Hernando County after a massive search that the media closely followed.

    Crum has a violent crime history, including a 1981 robbery and a 1985 sexual battery case in Hillsborough County, according to court records.

    “This is not someone who should be taken lightly,” Nienhuis said. “This is a bad guy who enjoyed violence.”

    Nienhuis said DNA collected from Crum’s past sexual battery case gave them the evidence they needed to charge him in Jennifer’s killing.

    “All of us, especially those of us in law enforcement, can think of Jennifer as our sister, our niece, our granddaughter and realize, man, this is a tragedy beyond tragedy,” Nienhuis said.

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  • Woman’s Remains Finally Identified After Discovery On Canadian River In 1975

    Woman’s Remains Finally Identified After Discovery On Canadian River In 1975

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    TORONTO (AP) — A woman found dead in eastern Ontario 48 years ago has been identified as a Tennessee spa owner who disappeared on a trip to Montreal, and a Florida man who knew her has been charged in her murder, police said Wednesday.

    The woman had been known for decades only as the “Nation River Lady” after the remains were found on May 3, 1975, floating in the Nation River, a short distance from a highway bridge near Casselman, Ontario.

    Technology that uses DNA to find genetic matches led to identifying her as Jewell Parchman Langford, Ontario Provincial Police said at a news conference.

    Detective Inspector Daniel Nadeau said the 48-year-old woman was a well-known member of the business community in Jackson, Tennessee, who co-owned a spa with her ex-husband.

    She had travelled to Montreal in April 1975 and never returned home.

    “At that time, her family in Tennessee had reported her missing,” said Nadeau. “While I cannot get into the specifics that will be entered at trial, I can tell you that the accused and the victim were known to each other.”

    Rodney Nichols, 81, of Hollywood, Florida, was charged with murder last year, but the charge was not announced at the time so as to not jeopardize his extradition from the United States. Canadian Broadcasting Corp. reported that Nichols has yet to appear in court in connection with the charge and has not entered a plea.

    Police say Langford’s case was the first use in Canada of genetic forensic technology to identify a victim.

    Other methods of identification, including creating a 3D facial approximation of her in 2017, were tried but had no success.

    The Centre of Forensic Sciences in Toronto obtained a new DNA profile of the victim in 2019. The data was sent to a lab in California where matches were made to two individuals in a family DNA tree.

    The DNA Doe Project, which works to identify victims in cold cases, said Ontario police contacted them for help and the victim’s DNA profile was uploaded to genetic genealogy databases in 2020. The organization’s volunteers identified Langford as a likely candidate within a few weeks.

    Ontario’s chief coroner, Dr. Dirk Huyer, said the DNA profile was used to help establish possible connections between the victim and others.

    DNA samples were then obtained from the surviving relatives of Langford, including her nieces, Huyer said.

    Police say Langford’s remains were repatriated to the United States in 2022 and a memorial service and burial were held for her.

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