Haddon-Hardy said he twice jabbed Wilson with a pocket knife to scare him off and didn't even know he had stabbed him.
The jury retired at 11.30am Tuesday to consider their verdict on the murder charge and delivered their not guilty verdict on that charge as well as an alternative charge of manslaughter.
Wilson's family members who sat through the trial were visibly distraught at the verdicts and were consoled by Victim Support.
They were not ready to speak on the verdict when approached through Victim Support.
Haddon-Hardy's lawyer Julie-Anne Kincade said her client did not wish to comment either.