NEW DELHI, Jan. 23 -- A 25-year-old man was stabbed at least 15 times by a group of people in a murder of revenge in north west Delhi's Mangolpuri, police said, adding that five people, including four minors, have been held in connection with the incident. Deputy commissioner of police (outer) Sachin Sharma said identified the victim as Akash Kumar, a resident of Mangolpuri who ran a food stall in the area. Investigation revealed that the murder was linked to an incident in September last year when the victim had set the house of a person, identified by police as Salman (one name). The group on Wednesday, who were friends with Salman, decide to kill Akash as revenge. The incident, caught on CCTV camera, took place late on Tuesday. In the fo...