paul rodriguez -- raoul, rather, a retired firefighter is on trial for murdering his neighbor. mbs under the texas version of the stand your ground law. rodriguez showed up at his neighbor's house to complain about a loud party. armed with a gun, cell phone and 911 operator's on the line. rodriguez is the only one armed but what he says is now key to his defense. >> it's about to get out of hand, sir. please, help me. please, help me, sir. my life is in danger now. he's going go in the house, come out, be more than equal to me. now i'm standing my ground here. now these people are going to try to kill me. look, i'm not looking at these people anymore. they're drunk. [ gun shot ] >> oh, my. so three are shot. two survive, except rodriguez' neighbor, kelly danniher, a young father and elementary school teacher dies. the law says a person doesn't have to retreat if the he feels his life is threatened. >>> other top stories, making their case. people who believe toxic dust and debris from the 9/11 attacks gave them cancer will have to prove it to receive aid in the 9/11 compensation