Steven Mathieson , 38 , stabbed 23-year-old escort Luciana Maurer 44 times . The attack happened at the end of a night out in central London on Saturday when he was arrested by police after stabbing her repeatedly with an eight-inch kitchen knife. Crimes occurred while his partner was out and son was asleep in bedroom . Mathieson , who was high on cocaine at the time , now faces life in prison .
Steven Mathieson , 38 , stabbed 23-year-old escort Luciana Maurer 44 times . As she lay dead on the floor , he raped two other prostitutes at family home . Crimes occurred while his partner was out and son was asleep in bedroom . Mathieson , who was high on cocaine at the time , now faces life in prison .