We want to remind you that our episodes are available on our YouTube Channel, The Gray Line, The Story Behind The Blue Line. Each episode begins with an introductory video featuring our guests. In this episode, hosts David Contreras, Gonzalo "Chalo" Gerardo, and Benny Cruz discuss prison gangs with retired California Department of Corrections Correctional Officer Johnny Rey. Johnny Rey was assigned as an IGI Investigator (Institutional Gang Investigations unit). Rey's duties included investigating prison crimes, validating prison gang members, and processing and documenting crime scenes within the prison walls. Rey is also the author of "Yard Down." This book is about investigating prison gang crimes--the crimes gang members commit for the benefit of, at the direction of, and in association with the specific intent to promote, further, and assist their criminal street gang.