. >> this wasn't exactly how 70-year-old doug lawrence planned to spend him golden years, in and out of sewage pits. drains. he will tell you life even on the streets of davis county, utah can get a lot messier. >> we are at a place that changed your life, i think it's fair to say. >> yes, most definitely. >> a word what did you witness here? >> i witnessed my son-in-law killed by a swat team that i founded. >> in 1974, lawrence was elected sheriff davis county. a year later he launched the department amtion first swat team, a unit he his preference always was to resolve conflict without force. his reputation for integrity became local lore, he actually ticket. >> do you understand that to many people that is the sort of thing that would only happen in fictitious mayberry. >> but my father was born and raised in mayberry, and my mother stiff lives there. eanld andy griffith was the sheriff. >> a tense confrontation with an armed man in a truck has been unfolding all day long in farmington. >> dub's son-in-law, was covered wall to wall on local media. >> he was basically parked light

and chris lawrence change your tie. >> will do doug. tomorrow. >> we'll make the most of our opportunity tomorrow. >>> tense moments today on the campus of the university of virginia. black students chanting at police. why many of them marched out of a meeting this afternoon. >>> and handing in his resignation won't end the controversy for illinois congressman aaron shock. why he >>> there are still questions tonight over who carried out the deadly suicide bombings on mosques in the middle east. a group claim tock a branch of isis is taking credit. bombers attacked two mosques in yemen during friday prayers. more than 130 people are dead and hundreds more have been hurt. aside from online claims there's no proof that isis is involved. but the post is on the same website where earlier this week an isis group took responsibility for a deadly attack in tunisia. >>> the country most devastated by the ebola outbreak in west africa may not be done with the deadly virus yet. liberian officials say a woman in that country has tested positive fo

doug's impulsive act of violence threatened his career. >> he couldn't risk an allegation that he hit her, struck her, he was working at lawrence livermores security clearance so any criminal record would have been difficult for him and put his job in jeopardy. >> with genna unconscious and not sure what to do, prosecutors think doug panicked and strangled her to death. he removed genna's clothing to eliminate possible trace evidence. when doug pushed genna's body into the back seat of his car, he displaced the carpet. the underside of the carpet and the seat belt buckle left signature marks on her skin that wouldn't disappear since there was no blood flow. doug chose a dump site 15 minutes away, pulled his car off the road, which picked up the bits of starthistle, the same stage of development that was found on genna's body. prosecutors think doug simply got lucky when the security cameras at both his office and the fast-food restaurant weren't working. but doug made a crucial mistake during his interrogation. he said he used his computer that saturday at the office. but his employer found no evidence that doug logged in. >> they couldn

doug. >>> when we come back, new details into the lives of fraternity members leading a racist chant speaking out. >> reporter: potholepalooza kicks off with a bang and a new strategy. i'm >>> i'm chris lawrence at the live desk. one of the frat brothers who led a racist chant has just held a news conference to apologize. he was caught on video at the university of oklahoma, and today levi petit met with officials in oklahoma city. during his news conference, petpit said he was very sorry and upset and embarrassed that he failed to stop that chant. pettit would not say who taught him the chant or where he learned it, the fraternity's lawyers have reached an agreement with ou and no more former members willing expelled from the school. the university is expected to release a report on what happened on friday. at the live desk, chris lawrence. >>> tonight, a local woman has a new opportunity to make a discrimination case against a former employer. the supreme court has ruled that peggy young of loiten virginia can make her case before a jury in district court. young had sued united parcel service in 2006. she accused them for refusing to accommodate her physical limitations during a pregnancy.