There was no way of hiding Bam Margera's sadness.
"It was pretty much the worst news I've ever heard in my life," Margera said.
He also reminisced about his friendship with Dunn and the last words they spoke to each other...
Margera was accompanied by his wife Melissa "Missy" Rothstein for moral support as he recalled how he found out the horrible news.
The daredevil was in Arizona at the time, when he was told by friends that he needed to speak to his brother immediately.
And then he heard the news.
What astonishes Margera even more was that this wasn't the first time something like this had happened.
"He flipped me in a car eight times at the same exact spot in 1996. Thank God I had my seat belt on, because Chris Raab put one on me, but my brother didn't have one on. He flew 40 feet. Thank God he's alive. But like, Dunn was always a maniac at driving," he said.
Bam pulled out his cell phone and read aloud the last conversation he had with Dunn via text messages.
"Stopping for a beer, be there when I can," was the last message sent from Dunn the night his accident occurred.
Had he known then what he knows now, Margera said that he would have made his friend hand over his keys so he wouldn't drive that night, but Dunn probably wouldn't have listened.
Brad Pitt and others have sent their condolences to the television star. "I think it's rad that, you know, people I talk to rarely, you know, can take the time to text me."
But that doesn't replace the emptiness he feels.
"He was my best f--king friend in the world. It's been five days now and I can't stop crying man," Margera said. "I just don't think it should've been him."