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YOU CAN HELP! KEEP COP KILLER BEHIND BARS: Killer of Nassau County Police Officer Matthew Giglio up for parole

Jun 19, 2016
  • Nassau county police officer matthew giglio

An open letter to our police family and to decent, law abiding people everywhere.

Sixteen years ago I had the pleasure of meeting the wife and children of Police Officer Matthew Giglio. For the first time in my career, I was meeting Matthew Giglio’s entire family, wife, children, grandchildren, brother and friends, taking them on an emotional and difficult journey to the past. All of them were about to relive the painful events surrounding the murder of a loved one, a police officer, in an effort to keep his killer behind bars.

This will be the 9th time for us to band together as one and prove to the Giglio family that we will never forget the sacrifice Matthew made when he gave his life to protect and serve our community.

As a union, we can take comfort in the fact that we will always be there for each other in our times of need. Matthew’s family will never forget and we owe it to them to make sure we each take the time to send this  message.

You would think that it would be a forgone conclusion that a cop killer would never be released. But the reality is that we need to do everything in our power to ensure that he remains incarcerated. Officer Matthew Giglio was murdered while in uniform, doing his job and protecting the public. Discounting that by releasing his killer would certainly depreciate the severity of his actions and diminish respect for the law.
This is a brief scenario of the fateful acts that took the life of a Nassau County Police Officer:
On October 7, 1975 Police Officer Matthew Giglio responded to a call for a burglary in progress at a store in West Hempstead. He was assigned to the ambulance bureau and responded to back up his fellow officers. Upon his arrival Officer Giglio observed John Mackenzie exiting the store and attempted to apprehend him. John Mackenzie quickly turned and fired one shot at point blank range into Officer Giglio’s chest. Officer Giglio was rushed to Mercy Medical Center where he remained for several months. During this time, Matthew endured tremendous pain and suffering, including the amputation of his leg which was taken in an attempt to save his life. On December 16, 1975 Officer Giglio finally succumbed to his injuries, only one week before Christmas. He left behind a wife and three young children.
This June, the Nassau County PBA along with Matthew Giglio’s family will be meeting with the parole board again to protest the release of his murderer, John Mackenzie. The Nassau County PBA is requesting your written support to articulate to the parole board, in the strongest possible terms, that any request for parole be denied. To grant freedom would have a devastating effect on the police community, the Giglio family, and all who are willing to sacrifice their lives to protect a civilized society.


The majority of the information you need to enter is self explanatory. Here is the rest of the required info. Just copy and paste it into the appropriate areas.

Din: 76A3447
Inmate Name: John Mackenzie
Comments: I vehemently oppose parole for John Mackenzie, killer of P.O. Matthew Giglio on 10/7/1975.

Your efforts in this endeavor are tremendously appreciated.

Wayne Hartmann
Treasurer, Nassau County PBA


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