Rick Warren, founder and senior pastor of Saddleback Church in Lake Forest, Calif., announced in a letter today that his son, Matthew, 27, committed suicide. In his letter, Warren wrote that "after a fun evening together with [wife] Kay and me, in a momentary wave of despair at his home, he took his life." He also recalled a time years ago when Matthew asked him, "Dad, I know I'm going to heaven. Why can't I just die and end this pain?"