one of instructor bobbi's group of searchers was "billings gazette" photographer larry mayer, a 30 yearlight veteran. >> i asked her what the route was. and, you know, to be honest with you, my heart just sank, because i knew the terrain along the route. and it's not very good terrain. >> such bad terrain, in fact, that larry was carrying an emergency kit he had packed in case he found her alive. >> i put together a sleeping bag, some bottles of water, some granola bars, a handheld radio and a large caliber handgun because it's grizzly country. >> there's mountain lions. there's, you know, coyotes. it's not where you'd want to see yourself, let alone a young girl. >> brian kjensmo was in his super cub. he's a graduate of bobbi's flight school, and he and all the pilots knew what might be waiting out there. >> i think that every person that was in the air had worst case scenarios playing through their minds. >> 5:00 p.m., mckenzie had been missing over an hour. counting bobbi and her husband, and mckenzie's grandfather, there were nine small planes in the air, scouring the ground. over t