Killer set fire to his beard as he tried to burn wife’s body

A delivery driver stabbed his wife to death then incinerated her body with a store of petrol he kept in his loft, a court heard. Amidu Koroma, 48, set his own beard on fire when he tried to dispose of the body of nurse Mariam Kamara, 46, jurors heard. Firefighters were called to the scene as Koroma escaped the house with a 17-year-old son boy and were astonished to find out he had made no attempt to rescue his wife…