The family of the man who died following an assault in the car park of the ASDA supermarket in Biggleswade says he had only just been told he had beaten cancer.
Bedfordshire Police have named the the victim as 64-year-old Brian Holmes.
The grandfather from Sandy, died at Addenbrookes Hospital on Sunday August 4 following the incident which took place at around 3pm the previous day.
A statement from the family said: "The family are devastated by the loss of Brian in such shocking circumstances.
"A wife has lost her husband, best friend and carer all in one go.
"Brian was a family man who adored his grandchildren and family, and had only this week been given the all clear following treatment for cancer.
"Brian and his wife were only just starting to make plans for the future that they only dared to dream of."
Detective Inspector Liz Mead of the Bedfordshire, Cambridgeshire and Hertfordshire Major Crime Unit, who is leading the investigation, said: "This is an extremely sad incident which has left a family absolutely devastated and our family liaison officers are doing all that they can to assist and support them at this very difficult time.
"I would like to hear from anybody who was in the car park at ASDA on Saturday afternoon and may have seen the incident taking place close to the disabled parking area. A number of people have already come forward but it is imperative that we speak with as many people as possible and collect all of the facts into what happened. Even the smallest pieces of information could assist us with our inquiries."