George Zimmerman retweeted an image over the weekend showing the body of Trayvon Martin, the Black teenager he shot and killed without conviction three years ago.

A Zimmerman supporter tweeted the photo to him, including with the caption: “Z-Man is a one man army.”

The graphic photo shows Martin’s body lying on grass as investigators stand over him. The photo, which was used in court as evidence in Zimmerman’s trial, has since been removed from his timeline.

Zimmerman’s retweet caused an uproar around Twitter, with even celebrities commenting in disgust.

George Zimmerman is online posting pics of Trayvon Martin’s dead body right now. Let that sink in America. #blacklivesmatter — Talib Kweli Greene (@TalibKweli) September 27, 2015

George Zimmerman retweeting a pic of Trayvon Martin’s lifeless body is probably the vilest thing I’ve heard of in a while. What a small man. — Toula Drimonis (@ToulasTake) September 27, 2015

The more we learn about George Zimmerman, the more we evident it is that Trayvon Martin should be the one still alive. — Kwame Rose (@kwamerose) September 26, 2015