Wayne Bengston, left, shot and killed Gregory Rodriguez, right, host of the Sportsman Channel show "A Rifleman's Journal,' while the TV personality was visiting the Bengston's wife A man in the US shot and killed the host of a TV program about shooting - while the host was visiting his wife. Wayne Bengston, 41, then beat his wife, took his two-year-old son to a relative's house and drove to his home about 40 kilometres away, where he apparently killed himself, police say. The victim was Gregory G. Rodriguez, 43, host of the Sportsman Channel show "A Rifleman's Journal". Bengston's wife told police that Rodriguez was in town on business and visiting her at her mother's house when her husband showed up on Thursday night. It wasn't clear how Rodriguez and the woman were acquainted. After the shooting, sheriff's deputies found Bengston's truck parked in hi