▁and ▁charged ▁him ▁with ▁various ▁cr imes ▁of ▁rob ber y . ▁Prior ▁to ▁his ▁execution ▁by ▁h anging ▁from ▁Hel ena ' s ▁" H ang man ' s ▁Tree ", ▁Sil vie ▁conf essed ▁to ▁being ▁a ▁member ▁of ▁the ▁Virginia ▁City ▁road ▁agents ▁and ▁to ▁at ▁least ▁a ▁dozen ▁mur ders ▁in ▁the ▁territory . ▁ ▁Short ly ▁after ▁Judge ▁L yman ▁Mun son ' s ▁arrival ▁in ▁Hel ena , ▁he ▁conven ed ▁a ▁grand ▁j ury ▁on ▁August ▁ 1 2 , ▁ 1 8 6 5 . ▁However , ▁unlike ▁Judge ▁H os mer ▁in ▁Ald er ▁Gul ch , ▁Mun son ▁made ▁no ▁remarks ▁about ▁vig il ant ism ▁nor ▁did ▁he ▁threaten ▁vig il antes ▁with ▁pro sec ution ▁if ▁they ▁continued ▁their ▁activities . ▁The ▁vig il antes ▁showed ▁little ▁respect ▁for ▁Mun son ' s ▁court ▁and ▁proceeded ▁to ▁carry ▁out ▁at ▁least ▁ 1 4 ▁extra jud icial ▁execution s . ▁Among ▁them ▁was ▁that ▁in ▁January ▁ 1 8 7 0 ▁of ▁Chinese ▁worker ▁Ah ▁Ch ow , ▁who ▁had ▁shot ▁and ▁killed ▁white ▁min er ▁John ▁R . ▁Bl itzer ▁after ▁he ▁found ▁Bl itzer ▁attempting ▁to ▁ra pe ▁his ▁wife . ▁No ▁member ▁of ▁Hel ena ' s ▁vig il antes ▁was ▁ever ▁ind icted ▁by ▁Mun son ' s ▁grand ▁j ury ▁for ▁execution s ▁carried ▁out ▁by ▁the ▁Hel ena ▁Committee ▁of ▁Saf ety . ▁The ▁last ▁execution ▁by ▁the ▁Hel ena ▁vig il antes ▁occurred ▁on