A woman who, along with her boyfriend, was shot while sitting in a parked car in Petworth on Thursday night died Friday, family members said yesterday.

The woman's mother identified the victim as Passion McDowney, 24, of the 400 block of 23rd Place NE. She was taken off life support at Washington Hospital Center at 3 p.m. Friday, according to Marianne Worley, a hospital spokeswoman. In addition to her mother, McDowney is survived by a sister.

McDowney's boyfriend, Duane Louis Hicks, 25, of the 4900 block of Ninth Street NW, was pronounced dead at 11:24 p.m. Thursday at Washington Hospital Center. Police included the wrong age for Hicks and misspelled his name in an earlier statement on the shootings.

The couple were both shot in the head in the 1300 block of Hamilton Street NW. Police said a man with a T-shirt wrapped around his head was seen fleeing the scene. A 4th District homicide detective who is working on the case said yesterday that the investigation was in a preliminary stage and declined to comment about a possible motive or suspect.

Wallace Cash Jr., a police officer in the 1st District who is Hicks's cousin, said the shootings occurred just around the corner from Cash's Petworth home. Only when police asked him, as a neighbor, to examine the victims did he realize that his cousin had been killed, Cash said yesterday.

A gathering of Hicks's family, which has lived in the District for five generations, had been planned for last night and was canceled, said Hicks's aunt, Cynthia Cash. Hicks attended Coolidge High School and later received a general equivalency diploma. He was looking for work and "trying to turn his life around," she said.

Hicks is survived by his mother, two half brothers, eight aunts and four uncles, Cynthia Cash said.

The families are planning a double funeral, relatives said.