The doctor who conducted a psychiatric assessment on a man on trial over a 2016 fatal knife rampage in a care home for the mentally disabled said Friday the influence of his marijuana use during the attack was negligible.The use of marijuana or addiction to it had "little to no influence on the crime," doctor Tatsuya Osawa told the Yokohama District Court on the 12th day of Satoshi Uematsu's trial.The 30-year-old, who has admitted to killing 19 residents and injuring dozens more at the facility in Sagamihara, Kanagawa Prefecture, was diagnosed with narcissistic personality disorder through …READ FULL ARTICLE