He grew up the middle of three brothers. By his 25th birthday, he was the only one left. Brett, the youngest, killed himself in December 2005, two months before he turned 20. His depression could appear with a stunning swiftness. On that final night, he talked of forgiveness and the future. And then, like the flipping of a switch, something changed. The oldest, Beau, struggled for years with depression. In the final few months of his life, mounting problems pulled him into a downward spiral. His family tried to help, but nothing could keep him from slipping farther into darkness. Four years after his brother’s death, Beau told his stepfather that Brett, who had shot himself in the head, had done it wrong. Days later, he went up to the attic of his family’s home and shot himself in the chest.