Police investigating the murder of a man in Milton have released CCTV as his heartbroken mum continues to grieve exactly one year on from his death.

Billyjoe Bates, 28, sustained serious injuries during the brutal attack in Ashfield Street on November 18 last year.

He passed away in the Glasgow Royal Infirmary four days later on November 22.

Detectives are now releasing images of a man they have previously appealed to identify, as well as four vehicles that were all seen in the area at around 2.30pm on the day of the attack.

Crimestoppers have also offered a £10,000 reward for information that leads to the arrest and conviction of the person responsible.

Glasgow Times: Murdered Billyjoe BatesMurdered Billyjoe Bates

READ MORE: Mum of Billyjoe Bates pleads for information six months on from Milton murder

The man in the image was seen in the Londis Store in Crowhill Street, then walking along Kippen Street.

He is described as between 25 to 45-years-old, around 5ft 10inches tall and of medium build with a dark neatly trimmed beard, moustache and sideburns.

He was wearing a grey beanie-style hat, a black jacket, black jogging trousers and white trainers.

While he was in the shop, he bought milk and American cream soda.

And the four vehicles in the images are a white BMW 1 series, a black BMW 3 series, a gold-coloured Nissan Qashqua and a red Mazda.

Police have stressed, however, that the man and the occupants in the vehicle are not being connected to the murder - but instead may hold information that can help with the inquiry.

Glasgow Times: Police want to speak with this manPolice want to speak with this man

Billyjoe’s Mum, Jackie Wilson, has today slammed the "coward" actions of those responsible as she begs for answers.

She said: “I am appealing to anyone who has any information of the murder of my son Billyjoe to come forward, even if you think it’s irrelevant.

“After a year has passed, I still have no answers to why this has happened.

"How a coward can do this to someone and leave them lying dying is beyond me. I absolutely devastated and heartbroken.

“You know what you have done. Others must know too so it’s time for people to stop protecting you.”

Detective Superintendent Stuart Houston, who leads the Major Investigation Team (West) said: “I must stress that we are not connecting the man in the image or the occupants of these vehicles with the death of Billyjoe.

"I strongly believe that they may have vital information that will assist this murder inquiry and not even realise the significance of it.

"I would appeal directly to them to contact my officers as soon as possible.

Glasgow Times: Police want to speak to the owner of these carsPolice want to speak to the owner of these cars

“Although a year has now passed we are still as determined as ever to track down Billyjoe’s killer.

"We are being meticulous and thorough with our inquiry and I am confident that we will make a significant breakthrough.

"I believe that there are people in the local community who know who is responsible for this murder. His family has been devastated by his death and they deserve closure.

"The person responsible must be brought to justice.

“We will trace whoever is responsible for this murder, but we would appreciate any information people can provide.

"Please don’t wait for the police to visit you at home. Do the right thing. I can assure anyone with concerns that information passed to us will be treated in the utmost confidence.”

Anyone with information regarding Billyjoe’s murder, no matter how insignificant it may seem, should contact officers through 101 quoting reference number 2422 of November 18, 2018.

Alternatively Crimestoppers can be contacted on 0800 555 111, where anonymity can be maintained.