April Margera remembers Ryan Dunn as the 'nicest, sweetest person'

"He was the sweetest, nicest person anyone could know," April Margera told us this afternoon about "Jackass" star Ryan Dunn, who was killed early this morning in a car accident in West Goshen.

"He always said we were his second mom and dad," said April, mother of "Jackass" star Bam Margera, referring to her and her husband Phil. A tearful April said she has been close to Dunn since 1993 when he and her son became friends.

"Just please let everyone know what a great person he was," she asked us.

April said she was sure it was just a rumor when contacted this morning by Casey Foster of 93.3 WMMR's Preston & Steve show but that she was devastated after calling police who confirmed Dunn's death which she then relayed to Foster.

Dunn was a regular on the show, having last appeared on-air on June 1.

Here is a clip from Sunday's "Minute to Win It," on NBC, in which Dunn, who recently started hosting a show for G4 "Proving Ground,"  appeared alongside "Jackass" cohort Steve-O.