DNA spurs arrest of ex-con for 1994 slay of Harlem mom and special needs daughter strangled with oxygen machine tubing (EXCLUSIVE)

An ex-con has been arrested for the shocking 1994 double murder of a Harlem mom and her special needs daughter, the Daily News has learned.

Both victims were strangled in their bedrooms with tubing from the daughter’s oxygen machine, police sources said.

Larry Atkinson, 61, was charged Monday with murdering Sarah Roberts, 57, and Sharon Roberts, 25, inside their Grant Houses apartment on W. 125th St.

The suspect was dating the home health care aide who found the victims dead on Feb. 20, 1994, police sources said.

The home health aide was investigated at the time but cleared.

DNA recovered from at the scene — a cigarette butt, the tubing, a fingernail scraping from the mother and dried biological evidence from the daughter’s hand — did not initially link to any suspect.

But last year, an NYPD cold case detective took a fresh look at the case, with the DNA again submitted for testing, sources said.

The fingernail scraping and the dry biological evidence were linked to Atkinson, sources said.

Atkinson, who has three aliases and 28 prior arrests and has served five stints in state prison denied any wrongdoing when he was picked up.

After his arrest the suspected killer, who lives in the Bronx, was taken to Bronx Care Health System, where he was scheduled for a chemotherapy treatment for cancer, sources said.

It was not immediately clear why he killed the victims, sources said, or how he gained entry to their apartment.

Atkinson’s parole ended in July 2016, three yeas after he was released from prison after serving two years for a drug sale conviction.

Before that, as Larry White, he served three years for an assault conviction, records show. Prior to that, Atkinson, serving time as Larry Brown, served several years for another drug conviction. In 1992, he was convicted of attempted robbery and served three years as Lee Jackson, ending in December 1995.

His first conviction, under his birth name, was in 1985 for assault. He served two years and was paroled in August 1987, records show.