Grand Blanc church shooting FBI update: Killer had anti-religious beliefs

FBI Detroit office update on Grand Blanc church shooting

The FBI Detroit Field Office has released updated information about the gunman's attack on the Church of Jesus Christ of Latter-day Saints last month.

The crazed murderer who attacked and set fire to a Mormon Church of Jesus Christ of Latter-day Saints in Grand Blanc was driven by anti-religious views, the FBI announced Friday.

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Thomas Jacob Sanford killed four people and wounded nine others before responding police fatally shot him on Sept. 28.

The gunman's motive was officially given in a FBI Detroit Field Office release Friday, one month after the deadly attack.

"(The) targeted act of violence is believed to be motivated by the assailant's anti-religious beliefs against the Mormon religious community," said Jennifer Runyan, special agent in charge.

FOX 2 reported that Sanford had a deep resentment for the church, saying that members were "anti-Christ."

A neighbor told FOX 2 that the 40-year-old Atherton resident was an Iraq war veteran who battled drug addiction issues.

On Oct. 3, Grand Blanc police released body-worn footage. See video below.