Connor Steven Lotterman, a 19-year-old engineering student at Grand Valley State University, was shot at a house party in Tallmadge Township on the evening of Friday, May 9, 2025, and died the following day, May 10. Lotterman was struck in the head by a bullet that investigators say came from a firearm discharged multiple times from the second floor of the residence; he was on the first floor when he was hit. He was born in Grand Rapids on May 13, 2005.

The Ottawa County Sheriff’s Office is investigating. Officials have described the death as the result of an accidental shooting but also noted the upstairs shooter discharged the firearm intentionally and fired multiple rounds. The Ottawa County prosecutor was reportedly considering criminal charges against the 20-year-old shooter. Grand Valley State University released a statement mourning the loss and offering sympathies to Lotterman’s family and friends.

If anyone at the party or nearby that night has information about what happened between 11 p.m. and when emergency responders arrived, please come forward.