. >> reporter: at nightfall, the search for missing fbi agent, steven ivins shifted to the air.riff's deputies and helicopters used night vision goggles to search the mountain over burbank. >> an area that has really rough terrain. we probably save that for daylight. and the areas that cover the grid, we would focus more so on. we have to be concerned about the rescuers safety. >> reporter: ivins called police at 4:30 friday. she told police, she had last seen her husband when she went to bed thursday night. police say sometime between 8:00 p.m. thursday and friday, he walked out of the house. his gun is missing, too. his wife said ivins had been despondent and talked about kill being himself. >> we do-- killing himself. >> we do searches like this routinely, obviously. but we have special concerns, given his apparent inclination to potentially commit suicide. >> there's no evidence of foul play right now. but that's why we still have a robust effort to locate him. >> reporter: during the day, searchers on foot combed the foothills and trails. ivins weighs 160 pounds. his work a

special agent steven ivins of southern california has been missing since thursday.ore than 150 agents and other officers have been searching for him over the weekend. they are worried the 35-year- old may be suicidal. ivins worked with the fbi for three years in the national security division. >>> we have much happier news to share, the story of a military home coming with a twist. this time, a marine is the one being surprised. sergeant jeremy cooney recently returned home from iraq to see his six-year-old son michael walking for the first time. michael suffers from cerebral palsy and doctors said he would never be able to walk on his own. after five months of work, michael walked across the gymnasium and into his father's arm. cooney's wife melissa says planning the surprise wasn't easy. >> it was hard. i had to make sure i didn't post video he's of facebook of him walking or status updates and i had to tell family they couldn't post it either. >> the last thing i expected was to see him come around that screen and just walking on his own. at that moment, you can'

steven ivins was said to be distraught and possibly suicidal. about 150 fbi agent, police officers and rescuers are looking for him in rugged mountain territory in l.a. county. >>> soccer fans in turkey went on a rampage after a championship game. police and fans clashed outside of the stadium after hundreds of people stormed the field at the end of that soccer match. fans threw rocks, set fires and smashed windows. police used pepper spray and water cannons to break up the riot. >>> finally, imagine being able to drink all you want, all the alcohol you want and not feel it. scientists will begin testing a pill that could prevent you getting drunk and can save a lot of people from embarrassing night. a buzzkill kill call it. >> how about that? >>> to presidential politics, "your otherwise, your vote" and same-sex marriage dominating the talk. mitt romney gave the commencement address at liberty university, christian conservative college and this was his biggest applause line. >> so it is today with the enduring institution of marriage, marriage

. >>> and the fbi is in california looking for missing agent steven ivins.icials say he is respondent and may be armed. officials are concerned for his wellbeing. i'm veronica de la cruz. now back to "lockup." >>> due to mature subject matter, viewer discretion is advised. [ bleep ] >> anybody out there, all y'all, anybody that got somebody in their family or friend that's in prison, man, i want to tell you the most important thing y'all have got to do. be there for them. i'm telling you, [ bleep ] get hard, man. gets hard when people don't get no letters, people can't call their family. it gets hard. so all y'all listening [ bleep ], watching, remember your loved ones, man. >> while a lengthy prison sentence can represent a black hole that consumes years of life, some inmates insist the experience motivates them to become better people. >> that's my ultimate goal. i want to be a better man. i have the opportunity where i can be a better criminal, but that's not me. i want to be a better man. a better father. i want to be a better son. i want to be a product