Transcript for Filmmaker: Friend’s role in Sarah Stern’s murder ‘heartbreaking’
Next tonight chilling new details in the murder of a young woman in New Jersey that made national headlines. A friend convicted. The motive greed. Now the secretly recorded confession that helped crack the case. Here’s Amy robach. Reporter: It was a shocking murder confession. It took me a half an hour to Reporter: Liam mcatasney describing how he strangled his friend, 19-year-old Sarah stern. She goes to walk out the front door. I choke her out, drag her. Reporter: The friend who secretly helped police record that confession — Anthony curry, now speaking out for the first time. It’s heartbreaking in a sense, you know. Somebody who’s your good friend. You don’t think they would do something like that. Reporter: This newly released video revealing more chilling details. I grabbed her legs. We got her over the fence. Reporter: Stern’s junior prom date, Preston Taylor, here showing police how he helped mcatasney dump stern’s body off a bridge. Liam had her by the shoulders and hoisted her up onto the railing, and then I pushed her feet over so she was going over the rest of the way. Reporter: Their ultimate goal? Steal stern’s inheritance money locked in a safe. Mcatasney’s own words sealing his fate this week in a new Jersey courtroom. Guilty. Guilty. Guilty. Reporter: Did you feel anything in that moment? Yeah, I felt that Sarah got some justice. It’s all about her. Reporter: What would you say to Liam mcatasney if he were sitting here? You’re an evil person. You shouldn’t exist on this Earth. A powerful statement right there. And Amy joins us now on set. Amy, you were telling me Sarah stern’s body was never found, so they needed this confession. Reporter: That’s right, Tom. It was a key piece of evidence. In fact, Sarah’s dad says without that recorded confession they probably never would have known what happened to her. Liam mcatasney now faces life in prison without parole for the murder, and Taylor faces 10 to 20 years for his role in the crime, Tom. So much more to this story. Thank you, Amy. Watch Amy’s full report on 20/20 right here on ABC.
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