How does a party with mates end in murder? | Sunday Investigates

In the early hours of Saturday morning, Sean Selby made a decision that landed him in jail for murder. How does an 18-year-old with no criminal history commit one of the worst crimes imaginable? And what happened to his victim's family, whose lives were changed forever? Sean Selby shares his story for the first time – confronting his past, and planning a very different future. Reporter: Jehan Casinader Producer: Del Byast Camera: Will Green Editor: Gareth Pearce -- For more watch    • Sunday Investigates   -- This is the official channel of TVNZ's 1News, where we deliver the latest news, in-depth journalism and expert analysis from reporters you can trust. Subscribe for reports from 1News, Seven Sharp, Breakfast, Q+A, Fair Go and Sunday.