106 followers
About JoeGiacalone
106 FollowersRetired NYPD Sergeant, adjunct professor, and the author of two books: The Criminal Investigative Function: A Guide for New Investigators 4th Ed, and The Cold Case Handbook
Retired NYPD Sergeant, adjunct professor, and the author of two books: The Criminal Investigative Function: A Guide for New Investigators 4th Ed, and The Cold Case Handbook