Suspect was killed early Wednesday when officers tried to arrest him in Provo, south of Salt Lake City. FBI said a suspect was killed when officers were trying to arrest a man.

An investigation is underway, the FBI added without providing details about the man. The septuagenarian was identified as Craig Robertson in a complaint by federal prosecutors in Utah. He presented himself as a staunch supporter of former President Donald Trump, and repeatedly threatened Joe Biden in social media posts. "Now is the time for a presidential assassination or two. First Joe and then Kamala!! " says one of the posts.