Foster carers who took in evil Craig Mulligan warned the teenager was obsessed with killing, months before he helped murder little Logan Mwangi.
But despite being described as a “monster” with a “desire for violence”, social services allowed him to live with his step-dad John Cole and the boy’s mum Angharad Williamson.
The heartless trio were today jailed for life after a trial littered with harrowing details of the tragic five-year-old’s miserable existence at their hands and his violent death.