At around 10.17pm on December 10, Noel Reynolds was walking in the Balkwell Avenue area when he was approached by an unknown male, who has then assaulted him in a suspected one-punch attack.
Noel, 37, from South Shields, fell to the ground following the assault and was soon rushed to hospital where he remained in an unresponsive state, until he sadly passed away on January 3.
His family are currently being supported by specialist officers.
An investigation was immediately launched following the assault and a 35-year-old man and a 36-year-old woman were arrested in connection with the incident. They have both since been released on police bail.
Sea fret - a look at the foggy phenomenon which spoils sunny days in Northumberland
Police seize large drugs haul in north Northumberland
Six people and a dog rescued from stranded vehicles on Holy Island causeway
Crossing closure will make railway line like the 'Berlin Wall' claims Blyth resident
Ashington FC to release new Ireland-inspired away kit in tribute to Jack Charlton
Enquiries remain ongoing and officers are now appealing for any witnesses to come forward.
Detective Inspector Louise Jenkins, of Northumbria Police’s Major Investigation Team, said: “First and foremost, my thoughts are with Noel’s family and loved ones, who are being offered specialist support by our officers.
"We ask that their privacy is respected during this truly challenging time.”
She added: “In the immediate aftermath of the incident, we launched an extensive investigation and have trawled hours of CCTV and made dozens of doorstep visits.
“Following Noel’s death, we are now treating this as a murder investigation and are appealing to the public for their assistance.
“We ask that anyone with knowledge of this dreadful incident please come forward.”
Anyone with information is asked to contact officers on 101 or via the ‘Tell us Something’ function of the website quoting log NP-20211210-1181.