One of the stranger chapters in Minnesota criminal history is resurrected in a new documentary being shown this week at the Walker Art Center. Award-winning California filmmaker Arthur Dong's latest work, "Licensed to Kill," examines the minds and motives of seven inmates convicted of killing homosexuals. One of the prisoners interviewed is Jay Johnson, a man who had visions of becoming a gay serial killer when he shot two Minneapolis men in 1991. Minnesota Public Radio's Chris Roberts reports. Some people may find this story disturbing.