A private memorial service to honor 'Jackass' star Ryan Dunn was held Wednesday and attended by Dunn's family members and friends, including 'Jackass' co-star Bam Margera, Johnny Knoxville and It's Always Sunny in Philadelphia stars Glenn Howerton and Rob McElhenney.

Margera's wife, Missy, and his parents, Phil and April, also attended the service.

Meanwhile, radical church group Westboro Baptist Church has vowed to protest against and disrupt any public service that will be conducted in honor of Dunn.

In His wrath, God cut off this young man in the prime of his life, because he made a mock of sin, and taught his fellow man to grievously sin against God! Westboro said in a statement.

Dunn, 34, died, early Monday morning, of blunt and thermal trauma when his car crashed into a patch of trees. Dunn, who was driving at over 130 mph, and a co-passenger died on the spot. Police said Dunn was drunk and was overspeeding.