More Info About Travis Barker

Shanna Moakler is sticking by her ex-husband and father to their two children, Travis Barker, as he heads back to LA. He's headed back to California by bus. Sources say, "Trust me, [Travis] will never fly again – ever."

Barker, 32, was released from the Joseph M. Still Burn Center at Doctors Hospital Another source tells PEOPLE: "Trust me, [Travis] will never fly again – ever."

As for the state of the musician's health, "he's not in good shape," says the source. "It's still serious. It's very serious.”