Cold Case Task Force
While the criminal case against Rex Heuermann is currently pending, the investigation by the Task Force continues. It became apparent that a new unit would need to be formed to […]
Return to the SCDA
In 2002, District Attorney Tierney returned to the Suffolk County District Attorney’s Office as an Assistant District Attorney, and handled more complex cases and investigations including political corruption, organized crime, […]
Push for Legislative Changes
In his steadfast dedication to keeping the residents of Suffolk County and New York State safe, District Attorney Tierney’s office coordinated the introduction of a bipartisan legislation package to help […]
People v. Rex Heuermann
In February 2022, District Attorney Tierney formed the Gilgo Beach Homicide Task Force with the Suffolk County Police Department, New York State Police, Suffolk County Sheriff’s Office, Federal Bureau of […]
Initiatives as District Attorney
Upon taking office in 2022, District Attorney Tierney immediately formed the first Violent Criminal Enterprises Bureau to combat organized crime and gang violence in Suffolk County, and re-established the office’s […]
Awards and Accolades
During his long career as a prosecutor, DA Tierney has received numerous awards including: • Federal Law Enforcement Association’s “Prosecutor of the Year” for the successful prosecution of over twenty […]
Federal Prosecutor
Beginning in 2008, District Attorney Tierney joined the United States Attorney’s Office and served as an Assistant United States Attorney in the Long Island Criminal Division for the Eastern District […]
Early Career
In 1992, District Attorney Tierney began his career as an Assistant District Attorney at the Suffolk County District Attorney’s Office, where he served under then-District Attorney James Catterson. He worked […]
Education
District Attorney Tierney attended Brown University, where he was a member of the varsity football team and received his Bachelor of Arts in History and English in 1988. In 1992, […]
