The comedy world remains in mourning for beloved funnyman Patrice O'Neal, who died at 41 in a New York hospital Monday after suffering a stroke October 19.

Among the tweets from O'Neal's peers following news of his death Tuesday:

Jim Norton: "I couldn't possibly love a friend more than I love you. Goodbye brother."

Sarah Silverman: "RIP Patrice O'Neal. You made us laugh til we cried."

Jay Mohr: "Just heard. Goodnight brother. Damn. Just ridiculous. Terrible. Beyond sad."

Surprisingly, the most shocking comment at Charlie Sheen's Comedy Central Roast on Monday night wasn't about hookers, blow or boozing  - or even about Charlie Sheen himself!

Comedian Amy Schumer managed to jack the distasteful factor up a giant notch with a controversial joke about deceased Jackass star Ryan Dunn that went down like a lead balloon with his best friend Steve-O, but despite the backlash, the little-known comic exclusively told RadarOnline.com that she has no regrets.

"If anyone feels offended then they are justified but I don’t think it was out of line. It was not my intention to offend but I stand by my joke," Schumer said. "It’s a roast and we’re going for the jugular. It was a joke about Steve-O and not about Ryan," she went on to explain. "I hope people understand that."

Is it possible to go too far at a roast?

Relatively unknown comic Amy Schumer put the question to a test in her set at Charlie Sheen's Comedy Central roast that aired Monday, using the recent death of Jackass star Ryan Dunn as grist for the comedic mill while taking a shot at one of the celebrity roasters on the dais, Steve-O.

After sending condolences to Steve-O, Schumer said, "When Ryan Dunn died Steve-O probably was thinking it could've been him ... with the rest of the world wondering, ‘Why wasn't it?’” (An upset Steve-O kept a blank expression after the joke was told.)

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.