. >> the student's father, david patterson, had a police record for aggravated assault, but by the time the rumor circulated, patterson was dead. >> he, himself, was shot to death. we decided, of course, that we had to investigate that lead. >> they asked patterson's children to voluntarily submit dna samples for testing. >> testing on david patterson's dna, or that of his family, which produced a presumptive profile, showed no possibility of him being any of the male dna profiles that was present at the scene of her murder. >> investigators also contacted john taylor, who had been an earlier suspect in laura's murder. his dna also did not match. and dan goodwin himself provided a dna sample. he had gone out with laura just a few days before the murder. goodwin maintained it was a casual date and said the two weren't intimate. >> since i took her out to the movies just four days before and knew her, they decided it would be advisable to test my dna. and it was tested, and i was not present at the crime scene. >> but at least the investigators had the killer's dna, and were closer to fin

establishment versus the tea party, three republicans are taking on the incumbent, david dewhurst, lane commissioner jerry pattersoney believe he is beatable, especially after he lost the campaign against senator ted cruz. >> the office of the governor is supposedly the most powerful in the state and a republican has held it over a decade. why haven't the issues of border secure, debt and real tax relief passed? >> dewhurst thanked the obama administration for federal stimulus money. dewhurst owes staff over $1 million and won't pay his bills. >> i'm running for lieutenant governor because there's a vacuum of leadership in austin. texas needs real conservative leadership. >> with a runoff almost certain in that lg race, dewhurst, dan patrick running second in many polls, has been a target of jerry patterson, who hired a private investigator, who claimed he he hire d them while in the united states illegally in the 1980s. good old-fashioned dirty politics going on there, huh? familiar faces are on the ballot today. george p. bush, nephew of george w., son of jeb bush, has been on the ballot. >> i pledge legionance t