amateur photographer and publican, opened the Prince of Wales Hotel in Victoria, 1868. He poisoned George Wilson with his photographic chemical, potassium cyanide in his hotel, however, he was acquitted of the charge of manslaughter. No photographs are kno Alternative summary: A publican who opened the Prince of Wales Hotel in Victoria in 1868. Jackson claimed to be an amateur photographer after 'accidentally' serving potassium cyanide to a patron in his hotel and was consequently acquitted of the manslaughter charge. No photographs are known.