Bam Margera’s crazy uncle Vincent Margera -- has died.
Vincent became famous for pranks he pulled off with Bam on "Jackass" and "Viva La Bam". TMZ reports Vincent has been struggling with kidney and liver failure for several years. He fell into a coma last month and has been in bad shape ever since. Bam's mom says Vincent passed away Sunday at 6:45 AM. Vincent was 59.