Gang members are behind the "massacre" of three people at a Hayward warehouse in 2011, according to prosecutors.
Paul Arthur Stevenson, 22, of Oakland, Anthony Alvin Perry II, 23, of Oakland, and Aaron Isaiah Stewart, 21, of Fairfield, were the members of the "Mob Squad" that fired at least 19 shots at seven people seated inside an SUV parked outside a tattoo party, according to the Hayward Daily Review.
Shanice Kiel, 19, of San Francisco, Leneasha Northington, 16, of San Leandro, and Joshua Alford, 23, of Oakland, all died, the newspaper reported.
The men left the parking lot near the car looking like a "battlefield" after deciding that Alford, who was allegedly in another gang, rubbed them the wrong way at a party.
Opening statements in the trial began Monday. A fourth shooter has exchanged a guilty plea and testimony against the other three for a lighter sentence, the newspaper reported.