MAN KILLED IN "SLOT" RACKET .CHICAGO, Aug.,. 31.—(UP)— State's attorneys officers investigated investigated machinations of the slot machine machine racket today for a clue to slayers ot John Sullivan, 45 V 'ex- convict. '•'...Sullivan '•'...Sullivan was ambushed near his ' home last night, shot nine times by two men. "I know who killed Johnny," sobbed- sobbed- his bride of a year. "I know why, but I .can't tell, because I know they'd get me.", . P.olice found several, slot machines machines in Sullivan's car, which .he- had parked a moment before he was slain. Sullivan's brother, Joseph, Joseph, who, died, two years ago -in. an automobile crash, was reported to have owned slot - machines. '