Comic Cracks Controversial Ryan Dunn Joke At Sheen Roast

Dunn, 34, died in June, along with a passenger Zachary Hartwell, 30, after a fiery crash in West Chester, Pennsylvania. Authorities later declared Dunn had a blood alcohol level of 0.196 percent, more than twice the Pennsylvania legal limit of 0.08.

On Twitter early Tuesday, both Schumer and Dunn were high trending topics, with divided opinions over the appropriateness of the line -- while many users were outraged at the nature of her joke, claiming it was too soon, a few stood up in her defense.

Comic/radio personality Jim Norton tweeted that Schumer "did EXACTLY what she should have done on that roast. F*** people and their selective outrage."

For her part, Schumer re-tweeted Norton's sentiments, as well as one from a user who wrote, "@SethMacFarlane w/ a Winehouse joke and all good.. @amyschumer does a Dunn joke and gets ridic heat? relax ya f***in a******* its a ROAST!"

Schumer isn't the only comedian to feel a little heat for comments made at a roast, where traditionally, nothing is off-limits.

During Comedy Central's Hugh Hefner roast just three weeks after the September 11, 2001 terrorist attacks, Gilbert Gottfried drew boos from the audience when he joked, "I have to leave early tonight, I have to fly out to L.A. I couldn’t get a direct flight, I have to make a stop at the Empire State Building!"

Gottfried -- who was fired as the voice of the Aflac duck after cracking similarly ill-timed jokes about the tsunami in Japan this year via Twitter -- only salvaged his set after launching into The Aristocrats joke, an uber-profane comedy tradition.