Minnesota authorities arrested Vance Boelter, the suspect in the assassination of Democratic state Rep. Melissa Hortman and her husband and the failed assassination attempt of Democratic state Sen. John Hoffman and his wife,

Here's what to know about the criminal charges filed against Vance Boelter, accused of killing Rep. Melissa Hortman and her husband, Mark.

Following the shooting and killing of Melissa Hortman, the top Democrat in the Minnesota House, and her husband, Mark, in their home on Saturday, June 14, Vance Boelter has been arrested as the prime

What to know about man suspected of shooting two Minnesota lawmakers and their spouses, resulting in one couple dying.

Vance Boelter, is now charged federally with the murders of Rep. Melissa Hortman and her husband, Mark, as well as the shootings of Sen. John Hoffman and his wife, Yvette, both of whom survived. At a press conference, Acting U.S Attorney for Minnesota Joseph H. Thompson called the shootings "the stuff of nightmares."

New details about Vance Boelter, accused of fatally shooting a state lawmaker and her husband, were revealed in court documents.

Investigators found a cowboy hat near the vehicle and were working to determine whether it belongs to Boelter.

The shooting occurred in their home outside Minneapolis, Minn., in the early hours of June 14. Boelter also allegedly shot Democratic Sen. John Hoffman and his wife, Yvette, in their home, but both of them survived the assassination attempt.

Thompson said Boelter went to the homes of four Minnesota State politicians, who he stalked before his crimes. Boelter allegedly researched the politicians, including

Several law enforcement agencies searched the Green Isle home of Vance Boelter on Saturday after he was named the suspect in the shootings of Melissa Hortman, John Hoffman and their spouses.