Detectives investigating the death of an expectant father inside a fast-food restaurant have released security camera pictures in the hope of tracing crucial witnesses to the attack.

Detectives investigating the death of an expectant father inside a fast-food restaurant have released security camera pictures in the hope of tracing crucial witnesses to the attack.

Richard Moore, of Magdalen Close, Norwich, died from serious head injuries last week following a fight in the city's McDonalds restaurant in Hay Hill following a trivial argument. His pregnant girlfriend Jemma Todd could only watch as the 21-year-old was beaten to death.

Father and son Gerard Stonehouse, 48, and Jonathan Stonehouse, 18, both of Woodcock Road, Norwich, have since been charged with manslaughter.

The older of the two men was arrested after three members of McDonalds staff chased them through the city centre. They have been released on bail on the condition they do not enter Norfolk other than for legal appointments.

Officers are still trying to piece together the circumstances surrounding the attack. The footage released shows a young man and woman were sitting close to where the assault happened and were inside the restaurant throughout the incident.

Det Sgt Tom Smith said: “I would strongly urge these two individuals to contact us. They were sitting in close proximity to where the assault took place and it is very likely that they saw and heard what happened from the very beginning of the incident right up until police officers arrived on the scene.

“This is a serious incident which has resulted in a young man losing his life and it is of the utmost importance that we trace these two people - their eyewitness accounts could be very valuable to our investigation.

“I would appeal directly to this man and woman to come forward as soon as possible and I would also ask anyone else who recognises them and has any information about who they are to contact us.”

Officers are also still keen to hear from any other witnesses who have not yet spoken to police. Contact Det Sgt Smith or Det Sgt Nigel Gillick at Norwich CID on 0845 4564567.