Vance Luther Boelter, 57, was arrested on Sunday for allegedly killing a Minnesota Democratic state lawmaker and her husband while posing as a police officer, Governor Tim Walz said.

A bystander was fatally shot after security members at the demonstration confronted a man who was running toward the crowd with an AR-15-style rifle, the police said.

Amid the horror and senseless violence in the shootings of Rep. Melissa Hortman and Sen. John Hoffman and their spouses, there are stories of heroism.

Lawmakers are still reeling from the shooting that killed one Minnesota state legislator and her husband and severely wounded another and his wife.

The shooting happened on the final night of WestFest, a celebration of the multiple cultures in West Valley City.

"Hi everyone! I’m looking to get back into the U.S. Food Industry and I'm pretty open to positions," Boelter wrote on LinkedIn last month.

Clayton Tyler Dodson, 25, shot at the deputies when they arrived at the gas station early June 15. After a man shot a Maury County deputy, deputies returned gunfire outside a gas station, fatally shooting him early morning June 15, according to the Tennessee Bureau of Investigation.