What was to be his final period of incarceration began in 1980, when David shot the owner of a pizza shop, ostensibly to draw police to the scene so he could "go out in a blaze of glory." One of the policemen was shot before David was captured. David was tried and given a 12-year minimum sentence. He turned out not to be a model prisoner. Over the subsequent 11 years, David threatened that, once discharged, he would bomb bridges, police stations, and other public facilities, massacre people indiscriminately on the streets, and poison Melbourne's water system. He also subjected himself to at least 75 separate acts of self-mutilation, the list of which is difficult even to read, including swallowing razor blades; cutting off pieces of his ears, nipples, and penis; and inserting fish bones into his eye.