I’m not defending the police here, but could this man have had a heart attack due to the presence of drugs or alcohol in his system, combined with the fact that his heart rate was elevated by resisting arrest? He does not appear to be in good physical condition. I see that his stomach looks a little distended and he sort of waddles as he took steps around the bar area. I’m not condoning the knee on the back, or the amount of elapsed time before checking for a pulse, but I think they should conduct a toxicology test and publish the report soon. Also, the article claims he crashed his car before running into the bar. He might have sustained injuries from the crash, and then exerted himself by running from the scene. There is a lot that occurred in this incident before the police arrived at the bar.