Nelson Hart (born 1968) was a Gander, Newfoundland and Labrador, Canada, resident, who was convicted on March 28, 2007, of murdering his three-year-old twin daughters in 2002. He successfully appealed the conviction in 2007, and his 2014 confession to police, obtained through a Mr. Big Sting operation, was found to be inadmissible. Without the confession, Newfoundland and Labrador prosecutors declined to pursue a new trial.