Colin L Hughes, who served alongside John Larsen on Denbigh Town Council, said he was one of the last people you would suspect of causing the explosions.
He told our reporter Lorna Prichard "it's difficult for me to say anything negative" about the former mayor - it was "a shock, to a lot of people" to learn that he was responsible.
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Rain clipping the far north through the evening but elsewhere staying dry with some sunny spells.
Public Health Wales figures show 25 more cases of the virus have also been confirmed.
Photos taken on Saturday morning show Roald Dahl Plass strewn with empty beer bottles and discarded canisters of laughing gas.