BREAKING UPDATE: Minnesota assassin left unhinged letter claiming Tim Walz instructed him to kill: report

The letter claims that he was trained by the US military unofficially, and that Walz told him to kill Klobuchar as well as other lawmaker, the outlet said, citing two sources familiar with the letter.

According to another report from Alpha News,citing multiple sources familiar with the investigation into Boelter and the shootings, said in a "confession letter" intended for FBI Director Kash Patel, Boelter confirmed that he was the “shooter at large in Minnesota involved in the 2 shootings."

Charging documents from police indicated that the handwritten note was from "Dr Vance Luther Boelter," and that the letter was found in the Buick that he had purchased in the hours after shooting Minnesota Sen. John Hoffman and his wife, Yvette, who were hospitalized, the outlet reported. Boelter fatally shot Minnesota House Speaker Emerita Melissa Hortman and her husband, Mark, after shooting Hoffman and his wife.

Boelter has been charged with murder as well as stalking by the Department of Justice in the case. He is also facing state charges of murder. An affidavit stated that evidence in the case "indicates that Boelter extensively planned his stalking, murders, and attempted murders."

There were around 45 names of lawmakers and others inside a notebook, including the names of Hoffman as well as Hortman. However, Walz was not named in a typed copy of a "hit-list" that Alpha News received.

Boelter is accused of posing as law enforcement to carry out the crimes and was dressed in a "hyper-realistic" mask when the shooting was carried out. A stack of flyers with "No Kings" on them were also found in the car that he had used, leading to several of the anti-Trump protests to be canceled in Minnesota later that day.