The family has now issued an image of Mr Williams.
His father, Victor Williams, said: “Jason will be sadly missed by his family.”
Officers continue to carry out a number of enquiries in relation to the death.
Two people, a 34-year-old man and a 37-year-old man, both from Basingstoke, were arrested on suspicion of murder.
They remain in police custody after magistrates granted a warrant of further detention for 36 hours.
If you have any information relating to this case, please call 101 quoting reference '44180066746', or contact Crimestoppers anonymously.