Police were called to a report of an assault in Pentyrch Street, at around 6.15pm on Monday, December 22. Mr Boston was taken to hospital, where he died four days later on Thursday, December 26.
Three men have been arrested in connection with this investigation and have been released on bail pending further enquiries.
Officers continue to appeal for any CCTV and dash-cam footage from Maindy Road, Pentyrch Street, Whitchurch Road, and Cathays Terrace, from between 4pm and 6.30pm on Monday, December 22.
The family of Colm Marcus Boston, aged 37, from Heath, have paid the following tribute:
“Colm’s family and friends, we are devastated by his loss. Colm was a father, a son, a brother, a cousin, and a deeply loved friend to many across Cardiff and beyond.
“Colm lived a complex life, with its highs and lows, but he loved the people in his life fiercely and mattered greatly to so many. His loss has left a profound impact on all who knew him.
“Following the incident on Monday, 22 December, Colm sadly passed away in hospital on Boxing Day. We are being supported by a Family Liaison Officer and are grateful for the compassion shown to us during this incredibly difficult time.
“We would like to express our heartfelt appreciation to the nurses and doctors at University Hospital of Wales, who were absolutely amazing in their care, professionalism, and unwavering support of Colm and our family. Their kindness and dedication will never be forgotten.
“We thank everyone for their support, respect, and understanding as we come to terms with this devastating loss.”
Contact South Wales Police quoting 2500404113.
