Former inmate charged in unsolved murder of mother and daughter in Harlem in 1994.

The former inmate was charged with murder in the 1994 double murder of a Harlem woman and her daughter with special needs.

Larry Atkinson, 64, is accused of strangling Sarah Roberts, 57, and her daughter, Sharon Roberts, 25, in their bedrooms at their Grant Houses apartment on W. 125th St.

On Thursday, he appeared in Manhattan Supreme Court, where a judge ordered that he be held without bail.

Prosecutors said Atkinson met with the family’s home health care assistant, who found the couple dead on February 20, 1994. Sarah Roberts suffered from emphysema.

An aide found the mother dead in bed in one room and the daughter in another bedroom with her mother’s oxygen tube and a pair of leggings tied around her neck, prosecutors said.

“As science advances, so does our ability to solve cold cases,” Manhattan District Attorney Alvin Bragg said Thursday. “Here, new technology has led to the indictment of the horrific murders of mother and daughter almost 30 years ago.”

DNA evidence found at the scene was not initially linked to either suspect, but NYPD Detective Ryan Glass resubmitted last year Sarah’s fingernail scrapings and Sharon’s hand swab for testing.

Atkinson, a convicted felon whose DNA was entered into the state database, matched the samples, authorities said.

“This particular [case] stood out to me, given that they were mother and daughter,” a cold case investigator told Daily News.

Atkinson has three aliases and 28 arrests to his credit, and has served five terms in state prison. Records show he was convicted on charges including drug dealing, attempted robbery and assault.

Attempts to contact his lawyer on Thursday were unsuccessful.