In January 2015 , Crumb was asked to submit a cartoon to the left-wing magazine '' Libération '' as a tribute for the Charlie Hebdo shooting . He sent a drawing titled " A Cowardly Cartoonist , " depicting an illustration of the backside of Crumb 's friend Mohamid Bakshi , while referencing the prophet Muhammad , founder of Islam
Charlie Hebdo shooting
Charlie Hebdo shooting
Robert Crumb