Police and the Drug Enforcement Administration are investigating how actor Matthew Perry obtained the ketamine that killed him last year, according to the Los Angeles Police Department. Dr. Jeffrey Swisher, anesthesiologist at California Pacific Medical Center, and Michael Brown, former senior DEA special agent, join “Elizabeth Vargas Reports” to discuss the risks of ketamine. #MatthewPerry #ketamine #investigation "NewsNation Now" is a no fluff, no filler newscast hosted by Nichole Berlie and Connell McShane featuring up-to-the-minute news drawing from a network of journalists across the U.S. Weekdays starting at 1p/12C. NewsNation is your source for fact-based, unbiased news for all America. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Ikij