Arrested two members of the Sangra street gang suspected in the slaying of two teens

Arrested two members of the Sangra street gang suspected in the slaying of two teens and attempted killings of four others outside a Rosemead motel room, authorities said Tuesday. Vincent Casio, 27, of El Monte, and Sean Martinez, 18, of Perris, were jailed in connection with the Saturday shooting at the Knight's Inn motel on Rosemead Boulevard, said Lt. Dan Rosenberg of the Los Angeles County sheriff's Homicide Bureau. Detectives suspect Casio and Martinez attempted to deliver speed or cocaine to a lone partygoer. Someone at the party, which occurred inside a motel room, said something that offended the killers. Detectives suspect Casio pulled out a gun. Then, "(Casio) actually corralled the males (at the party) on the balcony and opened fire," Rosenberg said. Gustavo De La Torre, 27, of Temple City and Angel Guerrero, 15, of Palmdale died at the scene of the shooting, said Jerry McKibben, an investigator with the Los Angeles County Department of Coroner. Three other teenage boys and one 18-year-old man were wounded in the shooting, Rosenberg said.The attack occurred about 2:20 a.m. at the motel which is located at 3633 Rosemead Boulevard, officials said. Guerrero and De La Torre were both pronounced dead at the scene, Pena said. Though there was underage drinking going on at the party, "Everybody appeared to be good kids," Rosenberg said. "They were not involved with gangs." Casio and Martinez were arrested with the help of tips from citizens, Rosenberg said.
Casio has been booked on suspicion of murder, while Martinez, who was a parolee-at-large, is being held for parole violations, the lieutenant said. Both are expected to be charged with murder.
According to court records, Casio and Martinez are each being held without bail.