Show cx pol ceman charged with grave cr me chicago vincent A altman for mer policeman and assistant business agent for the carpenters union was held to the grand jury on thursday by judge on a charge of hav ing thrown bomb 31 that krecl ed the central exchange of the chicago telephone company a few days ago his bail was fixed at 20 joseph altman a barber brother of the man held to the grand jury is also under arrest on suspicion of being ed in bomb outrages in various sec alons of the city during the last two years |