OR, maybe Bob is THIS guy:

A. BOB PIERCE?

Back in the 19th century when Australia was used as a British penal colony, a convict named Alexander Pierce escaped in a stolen boat from one of the island prisons, together with five other men. Hiding out in the hills, they began to starve, and one of them remarked that he could eat a man. The idea took root, and that night one of the men was killed; his heart was fried and eaten. A few days later, two more were killed, and their liver and hearts eaten. When one of the remaining three collapsed with exhaustion, he was killed with a blow from a hatchet, and partly eaten. The man who did the killing strapped the hatchet to his body in case Pierce attacked him with it in the night. Pierce decided to anticipate attack, and killed his companion, carrying off an arm and a thigh. Recaptured, he escaped again a year later with a man named Cox; Cox's dismembered body was found a few days later. When Pierce was captured, the meat and fish he had taken when he escaped were still intact - he admitted to preferring the taste of human flesh.