Bam Margera id “devastated” over Ryan Dunn’s death and told Roger Ebert to shut his “fat fucking mouth” after the movie critic tweeted an opinion about the Jackass star’s death.

Dunn's other Jackass co-stars, Stve-O and Johnny Knoxville, have also spoken out.

Ryan Dunn, 34, crashed his Porsche into a tree yesterday killing both himself and his passenger.

According to website TMZ, Dunn posted a picture of himself drinking in a bar just hours before the car crash in which he died.

Jackass star Ryan Dunn killed in car crash

After hearing about the tragedy, Ebert posted on Twitter: "Friends don't let jackasses drink and drive."

Although Dunn’s long-term friend Bam Margera had been silent, he reacted with fury to Ebert’s post.

"I just lost my best friend, I have been crying hysterical for a full day and piece of shit Roger Ebert has the gall to put in his 2 cents.

“About a jackass drunk driving and his is one, fuck you! Millions of people are crying right now, shut your fat fucking mouth!”

Other Jackass co-stars have sent messages of sadness on Twitter.

“Today I lost my brother Ryan Dunn. My heart goes out to his family and his beloved Angie. RIP Ryan , I love you buddy,” wrote Johnny Knoxville.

“I don't know what to say, except I love Ryan Dunn and I'm really going to miss him,” tweeted Steve-O.

The outpouring of grief from fans on Twitter has been interspersed with comments about the possibility that Dunn was drink driving.

Meanwhile, Dunn’s new stunt show, Proving Ground – in which he attempted video game and movie stunts in the real world – has been pulled following his death.

Here Ryan Dunn discusses his up-coming show, Proving Ground.