He was the first musician Greg met in school at San Fernando Valley; then they recruited Brett. He was the only drummer on the Bad Religion EP. Then, while he was recording How Could Hell... (over the course of four or five nights, working from midnight to 9 or 10 in the morning) he quit, without warning. According to Greg it was for some really stupid reason, like "you guys don't listen to me enough, fuck you, I quit". He walked out of the rehearsal studio, and left his drums and everything while they were halfway finished with the album. Then Pete came over and they finished the album with him. Jay played in a band called Electric Peace after he left BR. He is currently the boss at Grita!, a label devoted mostly to foreign punk bands that sing in Spanish.