Former Angels And Airwaves bassist RYAN SINN's sacking from the group in April (07) is still clouded with mystery - as bandmates refuse to divulge what led to his axing. The Adventure hitmakers - formed by ex-Blink 182 vocalist Tom DeLonge in 2005 - kicked Sinn out the group after his personal problems began interfering with his work - but won't reveal details of the difficulties. DeLonge says, "He's a really great person and a really great bass player. But we had different priorities and he had things going on in his life that he needed to take care of. The rest of us were relying on him to tackle those things, but he couldn't do it. And so it put him into a defensive position."