. >> dispatchers put in a coal call to local sheriff ron bruce. a drowning at cottonwood creek. >> by then, a group of medical responders who made their way up to the creek to help. but still, no heartbeat. not a breath from leslie. and it was clear she was gone. >> we were not going to be able to bring this mueller back. at >> the cabin, alex was wondering why his parents were back yet. their hike was only supposed to last an hour or so. but they had been gone more than three hours. were you worried? >> not really worried as if something happened to them. it was more like it was where they would stay out past dark. >> it was passed 8 pm when his dad got home. without his mom. >> it's my dad and the deputy. they come in. it's kind of a shock to see. when you're expecting somebody, to see strangers coming in instead. >> what did you think when you see that? >> not a whole lot at the time honestly. you kind of going to shut down. will >> alex recalled his dad seemed like he was in shock. >> he was very disheveled. had been crying a lot. he gave me a