 A year later, it was published, to wide acclaim, and Siringo moved his family to Chicago in the spring of 1886 for publication of a second printing.In 1886, Siringo witnessed the Chicago Haymarket affair.This prompted him to join the Pinkerton Detective Agency, using gunman Pat Garrett's name as a reference to get the job, having met Garrett in 1880, when they were searching for Billy the Kid.