Police last night relaunched an appeal for witnesses one week after a brutal assault at a motorway services station that left a young man dead.

Quhey Saunders, 20, died at St George’s Hospital in Tooting on Wednesday after being attacked at Cobham Services on the M25 two days earlier.

Simon Daniel Baker, 22, from Green Lane, Outwood, near Redhill, has been charged with murder and appeared at Staines Magistrates’ Court yesterday (Monday, July 3). He will next appear at the Old Bailey via video link on Wednesday, July 5.

Officers from Surrey Police are still looking for a second suspect and yesterday returned to the scene to continue their investigation.

Senior investigating officer Detective Chief Inspector Jo Hayes said: "Exactly one week ago today, a young man was brutally attacked. Last Wednesday, he sadly died of his injuries, and so we are visiting the scene again today to appeal to anyone who may have been there to come forward.

"I would like to identify everyone who visited thi busy petrol station at Cobham Services between 3pm and 3.30pm on Monday, June 26.

"There were drivers refuelling their vehicles and we'd like to speak to them. Eyewitnesses report people filming the incident on mobile phones, and we'd like to speak to them. And there was a second suspect seen leaving the scene in a white Peugeot Partner van. We'd like to speak to him.

"This would have been a traumatic event to witness, and I understand some people may feel confused or conflicted about coming forward. I want to reassure everyone that was there that we have trained officers waiting to speak to you - and your information could be vital in bringing the people responsible for this crime to justice."

To offer information, call Surrey Police on 101, quoting crime reference number 45170068211, or report online at report.police.uk

To offer information anonymously, call the independent charity Crimestoppers on 0800 555 111.