However , no witnesses to this crime were found nor to Curly Bill 's involvement in the Hasletts ' death .
Some modern researchers state that Brocius and friend Johnny Ringo rode to New Mexico to avenge their friends ' deaths and killed both Haslett brothers .
No witnesses to this crime were found nor to Curly Bill 's involvement in the Hasletts ' death .
Some modern researchers state that Brocius and friend Johnny Ringo rode to New Mexico to avenge their friends ' deaths and killed both Haslett brothers .