sincerely, brendan dassey. >> so do you think brendan dassey's confession was coerced? head to the "nightline" facebook page to weigh in. >>> and next -- we're with the men attacking isis from the air. on board an aircraft carrier with massive firepower. >>> but first, your voice, your vote. the results of couldn't'stonight's heated primary contests. republican donald trump once again trouncing his rivals. projected to win in michigan. although a strong showing from senator ted cruz and governor john kasich in that state. trump is also projected to win in mississippi. moving west keeping the pressure on trump. cruz projecting a win in idaho. and on the democratic side a abc projects hillary clinton will win handily in mississippi but an upset in michigan. abc now projecting bernie sanders will win by a narrow margin in the rust belt state. of course trump, the night's biggest winner, sizing up his victories with his trademark bravado. >> the bottom line is we have something going that's so good. we should grab each other and we should unify the party. and nobody's going

it's the lynchpin in brendan dassey's controversial case. tonight my "nightline" co-anchor dan harris investigates. >> come on, brendan, be honest. you can do it. just tell us the truth. >> i grabbed her arm, put it on the side, and tied her up. >> reporter: are we looking at a killer reluctantly unspoolg the details of his crime? >> then we shot her. >> why don't you draw what the blood stains looked like? >> reporter: or are we looking at a confused intellectually challenged teenager being manipulated into falsely confessing? the case of brendan dassey has leapt into the national consciousness as a result of the "making a murderer." >> they got to my head. >> reporter: this controversial confession tape was the centerpiece of dassey's trial. he's been in prison now for nearly ten years, convicted of raping and murdering teresa halback. but he and his family have maintained his innocence. >> they interrogated him and made him say what they wanted to hear. >> reporter: dassey now has a new legal team and they've filed a new federal appeal bas

made famous by the "making a murderer," this confession helped put 16-year-old brendan dassey behind bars for life. his lawyers now saying it wasre on our way to meet -- >> tonight we investigate why someone could confess tommit. >>> plus, wings and waves. we're taking you on an airborne mission into enemy territory. >> it is an intense rush, and atyes can play all dark. >>> and out at sea aboard a massive aircraft carrier, home

made famous by the netflix series "making a murderer," this confession helped put 16-year-old brendan dassey>> we're on our way to meet -- >> tonight we investigate why someone could confess to a crime they didn't commit. >>> plus, wings and waves. we're taking you on an airborne mission into enemy territory. >> it is an intense rush, and at nighttime your eyes can play all sorts of tricks on you in the dark. >>> and out at sea aboard a massive aircraft carrier, home to 5,000 armed sailors and hundreds of

made famous by the netflix series "making a murderer," this confession helped put 16-year-old brendan dassey behind bars for life. his lawyers now saying it was coerced. >> we're on our way to meet -- >> tonight we investigate why someone could confess to a crime they didn't commit. >>> plus, wings and waves. we're taking you on an airborne it is an intense rush, and at nighttime your eyes can play alll sorts of tricks on you in the dark. >>> and out at sea aboard a massive aircraft carrier, home to 5,000 armed sailors and hundreds of heavy weaponsn it's a rare journey to the front line in the fight against isis. >>> and the world of melania. before her glamorous life with the donald, there was this guy -- >> wow. who was in girl? >> a look back at the small town beginnings of a beautiful girir