John Callahan (outlaw) outlaws of the "Public Enemy"-era such as Edward J. Adams and Pretty Boy Floyd. Floyd may have, in fact, gotten his start in the underworld by transporting bootleg liquor for Callahan before becoming a bank robber. Callahan was eventually convicted of drug smuggling and was sentenced to 25 years imprisonment. He would serve only seven years before his release and retired to Wichita where he died in his sleep on June 8, 1936, at age 70. John Callahan (outlaw) John Callahan (1866 – June 8, 1936) was an American outlaw and bank robber during the closing days of the Old
Robber baron (feudalism) critic of this tactic drew a political comic depicting Vanderbilt as a feudal robber baron extracting a toll. This was the documented origin of the usage. Michael Heller refers to the original robber barons to illustrate his tragedy of the anticommons in his 2008 book. The tragedy of the anticommons is a type of coordination breakdown, in which a single resource has numerous rightsholders who prevent others from using it, frustrating what would be a socially desirable outcome. Robber baron (feudalism) A robber baron or robber knight (German "Raubritter") was an unscrupulous feudal landowner who imposed high taxes and tolls