our main story. a man who died after a car hit a group of people in sheffield was a good samaritan who was trying to help another person. police say christian marriott was out for a walk on wednesday afternoon with his wife and two young sons when he stopped to help an unconscious woman after a row between two groups. two men have been arrested on murder charges. simonjones reports. the police say what happened in this street on wednesday afternoon was utterly heartbreaking. christine marriott, described as a good samaritan, was out walking with his wife and two young sons when he saw a woman lying unconscious in the street. it s thought she had been involved in a row between a group of people. as mr marriott was giving her first aid, he was hit by a car and killed. the car also struck the woman. she is in a critical condition in hospital. six other people were injured, including an off duty midwife. when i came out, the car was there. i didn t know there were some people und