The ex-lover of murderer Thomas Cashman's blew apart his fake alibi to make sure the monster was convicted for killing nine-year-old Olivia Pratt-Korbel.
Merseyside Police has said they have never seen such bravery and the woman has already received the most death threats of any witness the force has dealt with.
She broke the criminal gang code to make sure her ex-lover Cashman was held accountable for his crimes as she tore his testimony apart from the witness box, and even taunted him for lasting just 56 seconds in bed.
Now in the witness protection scheme, she may end up cut off from her friends and family for life.