A driver has stabbed another motorist to death after getting out of his car and attacking his victim following a collision between their two vehicles.
Police said it happened near a garden centre at Rogers Farm on the A24 near Findon, West Sussex.
The 79-year-old victim died at the scene, at about 20:40 BST on Thursday. A murder investigation is under way.
The suspect is thought to have been driving the car in front of the man who was stabbed.
The man police want to trace is described as white, aged between 30 and 40, 6ft (1.83m) tall and skinny and with shoulder-length wavy brown hair.
Det Ch Insp Karen Mizzi said: “Officers have been urgently making inquiries overnight to trace the suspect.
“We need to hear from witnesses who saw the collision, the suspect or the car involved, particularly if anyone filmed the incident or saw anyone
BBC