The shooter got out of his vehicle firing an assault-style weapon, Grand Blanc Chief of Police William Renye said. He added that hundreds of people were in the church, which was set on fire when the vehicle smashed into it. The Church of Jesus Christ of Latter-day Saints is informally known as the Mormon church. The shooting occurred the morning after Russell M Nelson, the oldest-ever president of The Church of Jesus Christ of Latter-day Saints, died at 101. The next president of the Mormon church is expected to be Dallin H Oaks, per church protocol.