on thanksgiving morning, nick and haile left around 11:00 am. rachel brady: and then they said they were gonna go to my mom and dad's house. kate snow: the plan was to meet later at grandma's house. but nick and haile never showed up. kimberly and rachel tried calling them. is it strange for nick to not answer his phone? absolutely. even if i would have, like, called over and over again, he would've called, or answered and been like, what do you want? strange for haile to not answer her phone? extremely. she would have never not answered my phone call. kate snow: adding to their worry was the weather. it had started snowing. so i'm thinking, ok, the weather. maybe he got stranded somewhere. and i was hoping that he was just bearing it up and staying overnight in a dry-- a safe place. yeah, in a safe place. are you worried about a car accident? i was. very worried. kate snow: sure enough, on friday morning, there was frightening news. we heard about a car accident that had a red car. and we thought it was him right away. and so we went and looked, and it ende

nick. rachel brady: uncle nickel baby. and that's all for this edition of dateline. i'm craig melvin. thank you for watching. [sinister music] . i'm craig melvin. and i'm natalie morales. and this is "dateline." long would you wait to get justice for a friend? he killed her. he needed to pay for it. craig melvin (voiceover): they'd been college roommates, super close, until that terrible night. that many wounds could certainly suggest rage at the victim. absolutely. craig melvin (voiceover): who could have done it, her boyfriend? something just didn't seem right. craig melvin (voiceover): her new friend? things weren't adding up. craig melvin (voiceover): her ex? he was very obsessed with angie. craig melvin (voiceover): the trail went cold for more than two decades, but she was sure she knew who the killer was, even got a private detective license to help prove it. i said, i'm a private investigator, and i need you to tell me where's the evidence, all of that. it wasn't well received at all. craig melvin (voiceover): finally, the break they needed. we got the match. craig melvin (voi