cheers and applause this is the cbs weekend news. Quijano good evening. Im Elaine Quijano. An intense manhunt is under way for a gunman who opened fire early today at a waffle house near nashville, tennessee. It happened in the town of antioch, hours before the sun came up. At least four people are dead. Two others are critically wounded. The gunman was halfnaked and armed with a semiautomatic assaultstyle rifle. Investigators say the suspect ets arrested by secret Service Last Year for being in a restricted area near the white house. Mark strassmann has the latest from tennessee. Reporter around 3 30 a. M. , a gunman wearing only a jacket, naked from the waist down, began firing at customers at this waffle house. Reporter police say the gunman, identified as 29year old travis reinking, killed two people in the parking lot before heading inside, where he killed two more. Reinking got out of his truck armed with an ar15 rifle and started shooting. He clearly came armed with a lot of fir