<P> `` Death and All His Friends '' is the season finale of the sixth season of the American television medical drama Grey 's Anatomy , and the show 's 126th episode overall . It was written by Shonda Rhimes and directed by Rob Corn . The episode was originally broadcast on the American Broadcasting Company ( ABC ) in the United States on May 20 , 2010 . The episode was the second part of the two - hour season six finale , the first being Sanctuary , and took place at the fictional Seattle Grace Hospital . The original episode broadcast in the United States had an audience of 16.13 million viewers and opened up to universal acclaim . The episode centers a shooting spree at the hospital by a former patient 's husband Gary Clark ( Michael O'Neill ) . The episode marked the last appearances for Nora Zehetner and Robert Baker as Dr. Reed Adamson and Dr. Charles Percy respectively as both the characters were killed in the shooting . </P>
<P> `` Death and All His Friends '' is the season finale of the sixth season of the American television medical drama Grey 's Anatomy , and the show 's 126th episode overall . It was written by Shonda Rhimes and directed by Rob Corn . The episode was originally broadcast on the American Broadcasting Company ( ABC ) in the United States on May 20 , 2010 . The episode was the second part of the two - hour season six finale , the first being Sanctuary , and took place at the fictional Seattle Grace Hospital . The original episode broadcast in the United States had an audience of 16.13 million viewers and opened up to universal acclaim . The episode centers a shooting spree at the hospital by a former patient 's husband Gary Clark ( Michael O'Neill ) . The episode marked the last appearances for Nora Zehetner and Robert Baker as Dr. Reed Adamson and Dr. Charles Percy respectively as both the characters were killed in the shooting . </P>
who dies in the grey 's anatomy shooting
who dies in the grey 's anatomy shooting
Dr. Reed Adamson Dr. Charles Percy
Dr. Reed Adamson Dr. Charles Percy