Portage, MI - After positioning his cruiser behind the red Acura carrying the Pelletier brothers, a Michigan State Police trooper could see the passenger reaching around inside.Then, as he began pursuing the car, the trooper radioed that it appeared Sean Pelletier was preparing for a gunfight, police dash-camera footage from state police under the Michigan Freedom of Information Act shows."He appears to be loading a firearm," the trooper said during the May 14 incident.Dash-cam video and dispatch audio released Thursday show the 25-minute pursuit that began near Galesburg and ended in Portage, where Sean Pelletier, 37, was shot and killed by police and Aaron Pelletier, 29, was critically injured.