 The security guards involved in the incident have been suspended. Police, the Hyatt franchisee, and the company that operates it are also investigating Mitchell's death. Ayanna Archie, NPR News. Stocks on Wall Street are mixed. The Dow's up 24 points. The S&P is down 13. I'm Dave Mattingly in Washington. It's 7.33. You're listening to NPR's Morning Edition here on KAWC. Coming up next, climate connections followed by Marketplace.