Oakland police have arrested a teenager they believe is responsible for the January murder of Kenneth Lee Seets, an innocent bystander caught in a deadly crossfire between two groups while waiting for a bus near the Bay Fair BART Station in San Leandro.

Officers arrested the man, Jabrie Bennett, on Friday.

Seets, a 50-year-old Fremont man, was killed by a stray bullet on Jan. 19.

In February, BART police announced they had identified the 18-year-old Bennett as the main suspect in the case and were working with Oakland police to determine his whereabouts. Authorities had issued a homicide warrant for Bennett and BART was prepared to request assistance from U.S. Marshals.

"Because the shooting was in broad daylight and in a public area, Bennett was considered armed and dangerous," Chief Kenton Rainey said in a statement released Saturday evening.

Oakland patrol officers found and arrested him Friday in East Oakland, where he and his girlfriend lived.

She was grazed by a bullet during the shooting and originally reported as a bystander. She was treated at a hospital and released. BART investigators later identified her as 18-year-old Antilea Beal, and said she was on the run with Bennett.

She surrendered to police before Bennett's arrest and is also in custody, police said.

Bennett was booked at the North County Jail on the murder warrant and a narcotics violation, police said.

Two other suspects, a 16-year-old boy and another suspect who has not been identified, were arrested during a traffic stop shortly after the shooting. They were jailed on unrelated weapons charges after guns were found in their car.

AC Transit supervisor Larry Glenn was standing just steps away from Seets, who was sitting on a bench near the Bay Fair station bus loading zone, when a fellow driver asked for his help fixing a fare machine. Glenn said he had taken only a few steps when he heard shots ring out behind him.

Seets, a truck driver for a Hayward-based plastics plant, was pronounced dead at the scene.

In addition to BART and Oakland police, several agencies cooperated in the investigation, including San Leandro police, the Alameda County Sheriff's Office, Hayward police, Oakland schools police, the California Highway Patrol, the U.S. Marshals Service and the Alameda County District Attorney's Office.

Rainey said Saturday that detectives will continue with the murder investigation.

"I offer my deepest condolences to the victims' family and friends," the chief said.