Dennis Andrew Gresham, 33, of Sheridan, Wyoming, was shot multiple times and killed in Billings, Montana, in the early morning of April 23, 2021. He had driven to Yellowstone River Campground around 4:30 a.m.; shortly before 6:00 a.m. he was approached by Kristy Lynn Chavez and Michael McClure. After refusing their request for a cigarette and a ride, Gresham was attacked inside his van and left dead there.

Chavez and McClure took the van to Laurel, where police later found it covered by a tarp. McClure fled when an officer tried to confirm his identity, leading to a pursuit that ended in a crash in west Billings. Chavez was caught nearby; McClure barricaded in an attic and after a nine-hour standoff exchanged gunfire with officers and died from a self-inflicted gunshot wound. He was also linked to an April 19 shooting in which a woman was injured.

Chavez was charged with deliberate homicide by accountability, initially pleaded not guilty, and later accepted a plea resulting in the homicide charge being dropped and a 30-year sentence for armed robbery. Gresham’s family described him as a devoted husband and father of two young sons with an adventurous spirit.

If anyone has information about what happened that morning, please share it with investigators.