Authorities identified the suspect as 57-year-old Vance Boelter, and the FBI issued a reward of up to $50,000 for information leading to his arrest and conviction.

A massive search stretched into its second day Sunday for a man who authorities say wore a mask and posed as a police officer while fatally shooting a Democratic state lawmaker in her suburban Minneapolis home,

The Minnesota Bureau of Criminal Apprehension reports that Boelter was last seen on Saturday morning in Minneapolis, after the shootings, wearing a light-colored cowboy hat, a dark long-sleeve shirt, and light pants while carrying a dark cross-body bag.