Psychopath with Piers Morgan

In 2007, when Paris Bennett was 13 years old, stabbed his four-year-old sister to death, a crime for which he has been behind bars ever since. Now 25 and in his first interview on British television, he tells Piers Morgan how this was no impulsive fit of rage but rather a cold, deliberate act planned as an act of revenge against his mother Charity - who is watching the interview unfold in a nearby room. She has stood by him even though she fears that when he gets out, he could still harbour violent intentions towards her - or even worse, towards his younger brother