investigators tom fassbender and mark wiegert had coerced the teen into making a false confession. >>to say. >> don't lie to us now, okay? come on. what happened? >> we're just hurting yourself if you lie now. >> it's got severe warning disabilities, an ability to respond in a narrative type answers. and they're in precisely the areas that make him vulnerable to the kind of tactics the police officers used in this case. >> the attorneys say the investigators manipulated dassey with coaxing statements like these from fassbender, who was seated just off camera. >> i'm your friend right now. it's all right. you are doing the right thing. >> they should never have made those kinds of suggestions that they wanted to comfort him. that all would be well. those kinds of tactics when used on a kid like brendan dassey are a recipe for false confessions. >> and they say the investigators manipulation of the teen escalated far beyond simple coaxing. >> the officers needed brendan dassey to provide information that only the real killer would know. and they knew what they wanted him to say. >> they