An investigation was opened into how Perry received ketamine, an anesthetic that was a contributing factor in his death. Read more: https://www.9news.com/article/news/nation-world/matthew-perry-death-investigation-ketamine/507-5007537a-05da-4cf7-9cd7-7ff5820058ec More local videos here: https://youtube.com/@9news Subscribe to NEXT: https://youtube.com/@Nexton9NEWS Stay connected: 9NEWS Website: https://www.9news.com/ Facebook: https://www.facebook.com/ilike9news Twitter: https://twitter.com/9NEWS Instagram: https://www.instagram.com/9newsdenver/ Download the 9NEWS App: https://www.9news.com/appredirect/ Sign up for the 9NEWSLETTER: https://www.9news.com/email 9NEWS (KUSA) is located in Denver, Colorado.