I did find this interesting blurb on Daniel after his death while I was searching for info on Billy and Daniel:
Last Days: It was reported that Daniel attended classes at Valley College in the summer of 2006 including all the introductory basics — economics, anthropology, math, philosophy and English. "I didn't know him," said student Christina Corigliano, who was interviewed by Entertainment Tonight. "But I saw him a few times going to class and I thought he was cute." It has also been reported that the Daniel was taking antidepressants for depression related to a girl
Interesting.