He made a tribute mural for graffiti writer, Ozone, after he criticized one of Bansky's works and was tragically killed by a train afterwards.

Banksy's iconic Pulp Fiction image originally featured the two lead characters of the film pointing bananas in place of guns. London transportation authorities found the image too violent and painted over it. Banksy returned and painted the two actors pointing real guns but dressed in banana suits. This time, the image was painted over by local graffiti writers, one of whom was a 19-year-old writer named Ozone and wrote, "If it's better next time, I'll leave it." Ozone was later hit by a moving train and killed. Banksy returned to the spot and painted an angel wearing a bulletproof vest, holding a skull as a tribute to Ozone. On his website, Bansky wrote, "The last time I hit this spot, I painted a crap picture of two men in banana costumes waving hand guns. A few weeks later, a writer called Ozone completely dogged it and then wrote 'If it's better next time, I'll leave it' in the bottom corner. When we lost Ozone, we lost a fearless graffiti writer and as it turns out, a pretty perceptive art critic. Ozone—rest in peace."

fact via / image via (photographed by: Eddie Dangerous)