Sentence: 31 years and five months imprisonment
Thomas Kwan, a 53-year-old GP, devised an elaborate plan to murder his mother's partner, Patrick O'Hara, by injecting him with iodomethane, a toxic substance, to secure his mother's inheritance. He forged letters from a fake nursing team, disguised himself, and administered the poison on 22 January 2024, posing as a nurse giving a Covid booster. This led to Mr O'Hara suffering severe pain, necrotising fasciitis, multiple surgeries, and ongoing physical scars and post-traumatic stress disorder.