It was near the end of his first solo shift on March 24 when Wisconsin State Trooper Trevor Casper faced a life-or-death decision. After following a suspect into the city, he was ambushed by Steven Snyder of Michigan, a serial bank robber responsible for at least nine holdups in three states. Just hours earlier, Snyder had robbed a Wausaukee bank and murdered another man.
Snyder started shooting while both men were still in their vehicles.









