A Fairfax County man sought by police for nine hours yesterday in the fatal predawn shooting of his female roommate walked into the Franconia police station a half-mile from his home about noon and surrendered, police said.

Officers earlier surrounded the two-story, white frame house at 6255 Old Franconia Rd., west of Alexandria, while heavily armed tactical squad officers using tear gas combed the dwelling in an unsuccessful search for the suspect.

Fairfax police spokesman Warren Carmichael said the shooting occurred about 3 a.m. in the driveway as the victim, Robin Holland, 22, was preparing to leave after an argument she had had with the suspect. Carmichael said she suffered a single wound at the base of the skull.

She was taken by friends who witnessed the shooting to the nearby police station and was pronounced dead at 5:35 a.m. at Alexandria Hospital, Carmichael said.

Charged with murder was Delvin C. Holland, 30, a carpenter who sometimes worked with his father on home improvement jobs in the area. Police and a relative said the victim was married to a cousin of Holland's, but had been living with Holland at the Franconia Road address.

Holland appeared yesterday afternoon before a Fairfax magistrate at the county jail and was ordered held under $100,000 bond.

Frank O. Holland, the suspect's father, said yesterday he and his son had worked together on a job on Friday and that Delvin Holland had seemed relaxed and cheerful. He said his son had worked at construction in the District most of the summer and was under no particular financial pressures -- "no more than the rest of us," he said.

Holland attended Edison High School in Fairfax County, but quit to join the Army in 1969. He spent 18 months in Vietnam, assigned to the Corps of Engineers, and saw occasional combat, the father said.

Fairfax police quickly surrounded the scene of the shooting, unsure whether Holland was still inside the small, rented house. As uniformed officers crouched behind patrol cars, a 10-member tactical squad wearing bullet-proof vests began a slow, tense search of the property and a garage behind the house.

Police fired tear gas through a window of the house about 8:15 a.m. but got no response. A room-by-room search ended unsuccessfully at 9:30 a.m. Police dogs were brought into the area to continue the search before Holland, accompanied by a relative, surrendered two hours later.