Kenneth Iwamasa

The provided news articles focus on the death of actor Matthew Perry and the subsequent sentencing of Jasveen Sangha, dubbed "the queen of ketamine," for providing the drugs that led to his overdose. The articles detail Sangha's 15-year prison sentence and her role as a drug provider to celebrities in Hollywood. There is no mention of anyone named Kenneth Iwamasa in either article. Therefore, based solely on the information provided, Kenneth Iwamasa is not relevant to the news surrounding Matthew Perry's death or Jasveen Sangha's sentencing. Without additional context or articles, it's impossible to provide any information about Kenneth Iwamasa's background, relevance, or recent events related to them.