Greg Giraldo's colleagues mourn on Twitter

Slideshow posted in Entertainment News | Wednesday, September 29, 2010

4 of 11: Chris Hardwick wrote on his official Twitter page, ' I am floored by Greg Giraldo's death.' He added, 'Greg was a nice dude who was one of the best comedians of our generation.' (Photo courtesy of Chris Hardwick's official Twitter page: Twitter.com/nerdist)