His bandmate Chris Robinson said in a statement, “I can’t believe I’m having to say goodbye to my friend and my brother. It’s almost too painful. When I think about the songs we’ve written, the shows we’ve played and all the laughs and great times we shared it’s almost unbearable to know you’re gone.”

Casal had played this past weekend at the Lockn’ music festival in Arrington, Virginia, when his band Circles Around the Sun, played a late-night set.

The week before they were in the studio, recording a new album.