Minnesota authorities admitted they let a gunman who shot a Democratic lawmaker and her husband dead slip away despite engaging him in a firefight immediately after the murders. State Representative Melissa Hortman was shot along with fellow Democrat John Hoffman, a state senator, in a chilling assassination spree in the early hours of Saturday morning. Local police, sheriff's deputies, and the FBI have since launched an extensive manhunt, as authorities say multiple gunmen may be at large... The first shooting occurred just after 2am at Hoffman's home in Champlin, about 20 miles from Minneapolis. Hoffman and his wife were shot...