William Sullivan , 69 , is charged with attempted murder and misleading police . He and John Stephen Rakes were longtime business associates . The two men met that afternoon in a McDonald 's in Waltham , and Camuti bought two iced coffees , one of which he allegedly laced with two teaspoons of potassium cyanide and gave to Rakes , who drank it , authorities said . Camuti was indebted to him and allegedly poisoned his iced coffee . Rakes attended the 1992 trial of reputed Boston crime boss Whitey Bulger .
William Sullivan , 69 , is charged with attempted murder and misleading police . He and John Stephen Rakes were longtime business associates . Camuti was indebted to him and allegedly poisoned his iced coffee . Rakes attended the 1992 trial of reputed Boston crime boss Whitey Bulger .