The man has been found guilty of damaging the doors of his house with a hammer, and he has been jailed for a minimum of five years.
His victim said he was in his garden on May 12, when he heard a “buzzing” sound and noticed a large door on the right side of the yard.
“I turned to see what was happening and saw two big doors open, and I just thought ‘what’s happening?'”, he said.
“My back door was open, but the other door was locked.”
Mr McWilliams said the doors were locked because they were “automatically closed” by a key, which he found on the property.
He then locked the doors again.
“The next thing I knew, I heard a banging noise and I was like ‘what the hell is going on’,” he said, adding the door had to be opened “very slowly”.
“It was like it was being pushed by something.”
Mr McWilliams defence barrister, Matthew Stoner, said the man had been cleaning out the garage and garage door was “inoperative” because it had been bolted shut.
Mr Stoner said Mr McWilliams had been in the house “on the wrong side of it”, and the door was only open “for a few seconds”.
He said he had contacted the police after the homeowner’s family complained that the door did not work.
Police have appealed for information on the owner of the house.
A court was told the victim had recently moved out, and the “magnificent” door was his only entrance to his property.
He said it had “no significance” to him, and that he was “happy” to have it removed.
The judge, Mr Justice Dickson, said he believed Mr McWilliam’s “lack of remorse and lack of knowledge” would have been “the greatest mitigating factor” in the case.
Ms Stoner also urged the man to attend a drug and alcohol treatment service.
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