Colorado. Penitentiary. Canon City Unidentified prisoner dies from drug overdose. Post S 10, 1973 p.3 Armed confrontation among inmates, 2nd in lass than 12 hours was quelled after warning shots fired. Post S 11, 1973 p.1,3 Governor John Vanderhoof believes penitentiary should be split up into three or four smaller facilities. Post S 12, 1973 p.1,3 Grand Jury probe of prison murders urged. RMN v 13, 1973 p.5,5,10 Post S 13, 1973 p.1,3 0