Bedfordshire Police have named the man who was killed following an assault in the car park of the ASDA supermarket in Biggleswade on Saturday.
Brian Holmes, 64, of Sandy, died at Addenbrookes Hospital on Sunday.
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.”
More top news
The 100 leaders did not agree on concrete proposals, but the meeting has raised hopes for concrete international agreement next December.
The speech was OK, passionate at times and certainly well received, but did not display the passion of past speeches.
The brother-in-law of a British hostage being held by Islamic State militants in Syria, says he is scared by US airstrikes in the country.