Based off of Booth's confession in "Mayhem on a Cross". Booth is 14-15 in this.
Seeley Booth was tired. And not just in the needing sleep way. Although he did need sleep. But he couldn't sleep. At least not like that.
He was just so tired. Of everything. He couldn't take it any more. It was just too much. The constant feeling that he was a disappointment just by still breathing.
He knew how he was feeling was wrong. He knew that he should be thinking about normal teenage boy things: girls, parties, alcohol, hell even drugs.
But all he could hear was the voices. Saying how he had screwed up. How he was an abomination. How he was to be killed on sight.
Funny thing was, they weren't really talking to him. At least not directly. But he knew he had done something wrong. Why else would angels want to kill him on sight? He decided to save them all that trouble.
Seeley's hands shook as he placed the gun in his mouth and pulled the trigger.
What did I just write? Apparently Booth's a Fallen Angel? My obsession with Supernatural is showing, I know.