Vance Boelter is being held in the custody of U.S. Marshals as he awaits his first court appearance in federal court Monday afternoon. After being arrested late Sunday in a field in Sibley County, Boelter was booked into Hennepin County jail after being delivered by the Brooklyn Park Police Department just after 1 a.

Federal court documents released June 16 shed light on how investigators say a 57-year-old man carried out what officials are calling a "political assassination" that left a Minnesota lawmaker dead and another wounded.

Court documents reveal new details before the manhunt for Vance Boelter, the leading suspect in a shooting of two Minnesota lawmakers.

Minnesota authorities have charged Vance Boelter with two counts of second-degree murder and two counts of attempted second-degree murder.

Officials say Vance Luther Boelter 'stalked his victims like prey.' He faces multiple state and federal charges.

Vance Luther Boelter, 57, was arrested on Sunday in connection with the shooting death of Minnesota Democratic state Rep. Melissa Hortman, a former House speaker, and her husband at their Brooklyn Park home on Saturday morning. He also allegedly shot Democratic State Sen. John Hoffman and wife Yvette, who were wounded at their home in Champlin.