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A much-convicted, 71-year-old schizophrenic man now free after brutally strangling a cellmate remains “a significant threat to the safety of the public,” according to a new ruling that singles out his unauthorized use of marijuana for concern. George Veerman of Hamilton, Ont., was released in 2015, seven years after being found not criminally responsible for the murder, and now lives with his brother. But Veerman “remains incapable of consenting to psychiatric treatment. He is treated with a long-acting injectable antipsychotic medication every 14 days and 350 mg of Clozapine nightly...