Instruct: Classify the given review as either positive or negative.
Query: Four Men Hanging

First, for the politically correct, this book concerns white men lynched by white men in an Oklahoma town that had been Indian Territory a very few years earlier.The Wild West ended in Oklahoma in the early 1900's, not Tombstone's OK Corral in the 1880's. This eyewitness author reminds us what American justice means and how it's carried out when "the system" repeatedly and horribly fails. Simply put, when law and order systematically fail, evil people will exploit the failure...but the armed general public cannot be easily bribed, and they surely tend to relentlessly hunt down human monsters when no "legal" option exists. This primal justice is a warning to criminals of all classes in our times as well as in theirs, a mere century ago.