Frias, who loved to dance to Mexican big band music and play baseball, was studying business at City College and was preparing to transfer to a state university. He was a technician at the San Francisco Public Utilities Commission who hoped to build a career at the water agency.His friends, too, were college students. One was in his first year of law school. On the night they were attacked, police said, they were listening to loud rap music as they drove toward a restaurant in a Buick Regal. About 7 p.m., while the group was stopped at a light on John Daly Boulevard next to the Daly City BART Station, Velasquez and Balam jumped out of a stolen Honda Civic and sprayed the Buick with bullets from an assault rifle and a .380-caliber pistol, Morena said. The men got back into the Honda, which was driven by Herrera, and sped onto Interstate 280, police said.Frias, the Buick driver and another friend were shot. The driver managed to steer 2 miles to Seton Medical Center as the passenger who was unhurt called for help. Doctors met the young men in front of the hospital, but Frias was already dead. The Honda, which had been stolen in San Francisco's Mission District, was found by police in the Castro a day after the slaying.
Daly City police had few other leads until March 4, when a "very alert" San Francisco police officer stopped a car in which Herrera was a passenger and arrested him on suspicion of auto theft and possession of a loaded .380-caliber pistol, Morena said.Ballistics tests revealed that the pistol had been used in the Daly City shooting, Morena said.