India, June 21 -- Vance Luther Boelter, the suspect accused of fatally shooting former Minnesota House Speaker Melissa Hortman and her husband, Mark Hortman, allegedly wrote a letter to the FBI claiming that Governor Tim Walz instructed him to assassinate US Senator Amy Klobuchar so Walz could run for her seat, the Minnesota Star Tribune reported, citing two individuals familiar with the letter's contents.

The letter, described as rambling and conspiratorial, was reportedly found near Boelter's home in Green Isle, Minnesota. In it, Boelter, 57, also claimed he had been trained "off the books" by the US military and asserted that Gov. Walz, who has not declared any Senate ambitions, had directed him to target Klobuchar and others.

A spok...