In April 2011, with the help of her psychopathic new boyfriend and a small group of accomplices, 15-year-old Amber Wright brutally murdered her former sweetheart, Seath Jackson, in a crime that stunned America.

The teenager was beaten, shot and kneecapped, before his corpse was burned, yet none of his killers have ever been able to explain why.

Wright received a life sentence for her terrible crime yet the young lady Piers Morgan encounters is a chilling individual who doesn’t seem to grasp the gravity of her actions.

However, the most powerful part of this week’s episode comes when Piers encounters Seath’s parents, whose fury and sense of loss is still painfully raw.