AP Photo/Mike Roemer

A gunman shot and killed two people and seriously injured another at the Oneida Casino near Green Bay, Wisconsin, on Saturday night before the suspect was killed by police.

Investigators believe the suspect was targeting an employee at a restaurant inside the hotel attached to the casino with whom he had a "personal relationship," but the employee was not there so he instead shot the person's "co-workers or friends," Lt. Kevin Pawlak of the Brown County Sheriff's Office said during a press conference. The police also said that the suspect appears to have ties to the casino from an employment status.

Gov. Tony Evers (D) said in a press release that he was "devastated to hear about shooting," adding that his and his wife's "hearts, thoughts, and support go out to the Oneida Nation, the Ashwaubenon and Green Bay communities, and all those affected by this tragedy." Read more at CNN and USA Today.