The personal assistant who injected Friends star Matthew Perry with a fatal dose of the hallucinogenic drug ketamine was sentenced to 41 months in federal prison on Wednesday, bringing to a close the prosecution of five people who admitted to playing roles in the actor’s death. Judge Sherilyn Garnett delivered the sentence for Kenneth Iwamasa, the person who found Perry floating face down and lifeless in a hot tub at his Los Angeles home in October 2023. Federal prosecutors said Iwamasa...