Show I NEEDED WITNESS rOUND FOUND i Former Fonner Official of Packing Company Willing to Talk to Grand Jury If Granted Immunity Chicago Feb Ralph Crews and Ar Arthur Arthur Arthur thur Colby Colb general counsel and assistant treasurer r of the National Packing com corn company company pany party were the principal witnesses before the federal grand jury jur in its investigation tion of ot the beef beet trust today Mr 11 Cre carried a number of ot books and a papers into the jury jur room and in a few tew minutes he came out without them That the government has found a alu valuable able and well wen informed witness in the person of a former trusted official of or a large packing company was the report about the federal building This man is said to be beon on a pension at present but has hal consented to tell teU the jury all an he knows on the stipulation that hp he h hebe be granted Immunity |