Four people died and several were injured when Thomas Jacob Sanford allegedly attacked the Michigan Church of Jesus Christ of Latter-day Saints on Sunday.

Investigators say they’re still looking for a motive in the deadly shooting and fire at a Latter-day Saint meetinghouse in Michigan but the White House attributed it to apparent animosity toward church members. Speculation about what drove Thomas Jacob Sanford has ranged from his political leaning to religion to mental illness.

Police say a former Marine smashed a four-door pickup into a Church of Jesus Christ of Latter-day Saints church in Michigan on Sunday morning. Then he opened fire on the congregation and set the building ablaze.

At least four victims were killed and eight others injured after a man rammed his vehicle into a church and started shooting.

Thomas Jacob Sanford, the 40-year-old Iraq War veteran identified as the suspect in a fatal Sunday attack on a Mormon church in Grand Blanc, Michigan, seemed to own Donald Trump memorabilia, with a campaign sign on display outside his house.