Artist Shu Ren (Arthur) Cheng’s mural at Columbia and East Pender streets was targeted in a racist attack last week. Pictured is one of the mural’s three panels vandalized. Photo courtesy Winston Sayson A three-panel mural that decorates the side of a building in Chinatown with visual stories of Chinese pioneers in Vancouver was vandalized sometime last week in a racist act that one observer described as jarring and disturbing. Winston Sayson, a retired Crown prosecutor, took photographs of artist Shu Ren (Arthur) Cheng’s “Snapshots of history” mural on June 30 after noticing the people featured in the paintings were marked up with blotches of red paint.