Evidence gathered by investigators suggest a suspected gunman who allegedly killed a Democratic state legislator and her husband and wounded another planned a "long-term" campaign against his political enemies.
Vance Boelter, 57, was arrested following a two-day manhunt and charged in the killings of Melissa and Mark Hortman and the shootings of John and Yvette Hoffman. NBC News correspondent Tom Winter discussed the evidence already turned up in the case by federal investigators.
"One, they say that they found a note effectively addressed to the FBI in a Buick that he bought," Winter said. "So he bought an e-bike and a Buick after the shooting, while he was on the run, for $900, and they say inside that they found a note where he effectively says, you know, 'Look, I'm the guy that you're looking for, this is me.' ...