Most of South Boston's cocaine and marijuana trafficking was under the control of a crew led by mobster John Shea. According to Weeks, Bulger briefly considered killing Shea, but eventually decided to extort a weekly cut of his profits. Weeks also said that Bulger enforced strict rules over the dealers who operated on his territory, strictly forbidding the use of PCP and selling drugs to children, adding that those dealers who refused to play by his rules were violently driven out of his turf. In 1990, Shea and his associates were arrested at the end of an investigation by the DEA, the Boston Police, and the Massachusetts State Police. He quietly served a long prison sentence and refused to admit to having paid protection money to Bulger, Flemmi and Weeks. He repeatedly got in fights with other inmates who accused Bulger of being "a rat." This earned Shea a legendary reputation in South Boston.