CSI “Coup de Grace” Season 10 Episode 4 October 14, 2009 CSI Watch a sneak peek of CSI “Coup de Grace” Season 10 Episode 4 airing Thursday October 15 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Episode Synopsis: CSI “Coup de Grace” Season 10 Episode 4 – The team investigates the racially charged case of a cop that accidentally kills another cop and the infighting between the police and the local community that ensues, on CSI: CRIME SCENE INVESTIGATION, Thursday, Oct. 15 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Also watch any CSI episode that you want here. Read all our CSI coverage. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)