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  1. I had the honor and pleasure of working for John when he was CO of the Suffolk County District Attorneys Office. He was a true gentleman. My deepest sympathy to John’s family.

    Rest In Peace John.

    Hugh Herbert

  2. Condolences to the Brennan family on the passing of John.May he rest in peace.

    John (BUS 20)Carricato–School Security

  3. JOHN BRENNAN WILL TRULLY BE MISSED,WHAT A PLEASURE IT WAS BEING IN HIS COMPANY,WILL NEVER FORGET HIS SMILE TYILL WE MEET AGAIN , JACK RODDA

  4. I worked for John back in the 1980’s, as a Detective, in the DA/Rackets Bureau. He was always smiling and made my day, with his wit and humor. A gentleman and a great cop. Always there for his men. A great leader who was very well liked and respected. I will miss him and keep him in my prayers and memories always.

    Mel Cohen (SCPD RETIRED DET. # 651)

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