flanagan s past. he was known as bryce williams during his tv year, evan perez is working his sources. what are you learning and about his possible motive, and the manifesto received by abc news. it is gunman is believed to have sent a 23-page rambling suicide letter claiming he was a human powderkeg, angry about racial grievances for years. the letter is believed to be from vester flan aga using his on-air name bryce williams. it arrived by fax this morning at abc news. the letter says in part, quote yes, it will sound like i m angry. i am. and i have every right to be, but when i leave this earth, the only emotion i want to feel is peace. the letter writer expresses administration for our mad shooters, including the ones at virginia tech and columbine high school, but his final motivation was the june charleston church massacre. in that shooting nine people were at a bible study at a