Executive Staff


First Assistant Prosecutor - Cary Shill

In 1989, First Assistant Prosecutor Cary Shill began his career as a prosecutor when he joined the Atlantic County Prosecutor’s Office. In 2006, he was promoted to Chief Assistant Prosecutor. During his tenure with the Office, he has supervised the Trial Unit, Atlantic County Shooting Response Team, Gangs, Guns and Narcotics Unit, Violent Crime Unit and Computer Crimes Unit. In 2003, Mr. Shill successfully prosecuted the last trial in which a defendant in New Jersey was sentenced to death. In 2006, he received the Outstanding Victim Advocacy in a Single Case Award from the County Prosecutors Association of New Jersey. In 2004, Mr. Shill was honored to be awarded the Crime Victim Service Award by the New Jersey Division of Criminal Justice. Mr. Shill is certified by the New Jersey Supreme Court as a Criminal Trial Attorney. From 1990 to 1993, he was an assistant prosecutor at the Essex County Prosecutor’s Office.  In 1985, Mr. Shill received his Bachelor of Arts degree from Trenton State College. In 1988, he graduated with a law degree from the Florida State University College of Law.

Deputy First Assistant Prosecutor - Mario Formica

Mario Formica serves as a Deputy First Assistant Prosecutor at the Atlantic County Prosecutor’s Office. Formica is a lifelong resident of Atlantic County and was born and raised in the "Ducktown" section of Atlantic City.

He graduated Magna Cum Laude from Richard Stockton University with a bachelor’s degree in psychology. After graduation from Stockton University, Formica was accepted to Rutgers University School of Law in Camden in the spring of 1996.  In 2000, graduated with a Juris Doctorate degree with honors.   Formica served as an Editor of the Rutgers Law Journal and published a scholarly note, The Violation of an Individual’s State and Federal Constitutional Rights Should Be a Private Matter in California, 30 RUTGERS L.J. 1377 (1999)

After graduating law school, Formica was selected to clerk for the Superior Court of New Jersey, Appellate Division, the Honorable Steven Z. Kleiner for the 2001-01 term.  While clerking, Formica wrote the legal memorandum for presiding Appellate Judge James Havey in the published opinion of Troup v. Home Associates Equity Services, 343 N.J. Super, 254 (App. Div.  2001), a predatory lending case cited nationally over 300 times.

Formica started working at the Atlantic County Prosecutor’s Office in September 2001 as an Assistant Prosecutor assigned to the Grand Jury Unit. Less than a year later, Formica was assigned to an investigative trial unit, the Violent Crimes Unit, and paired with then Chief Assistant Cary Shill.  Formica worked in VCU until September 2007 at which time he left the ACPO for a position in private practice at the law firm of Hill Wallack LLP.

In 2008, Formica to returned to the ACPO and was assigned to the Guns Gangs and Narcotics Unit.  

In 2012, Formica was promoted to Chief Assistant Prosecutor in charge of Special Litigation. He supervised 6 attorneys, handling all criminal appeals arising out of Atlantic County ranging from municipal court appeals to the New Jersey Superior Court Appellate Division to the New Jersey Supreme Court to the United States 3rd Circuit Court of Appeals.  Formica handled all appeals from denials of firearms permits, as well as the tracking of Megan’s Law registered sex offenders.

In 2013, Formica developed an original Search and Seizure instructional seminar that has been presented to local police agencies on a periodic basis from that time to the present.

In 2014, the New Jersey Supreme Court certified Formica as a Criminal Trial Attorney.

In March 2017, Prosecutor Tyner named Formica, Deputy First Assistant Prosecutor. Formica retained prior duties as supervisor of the Special Litigation Unit, and now supervises two chief assistant prosecutors handling:  the Guns, Gangs and Narcotics Unit, and the newly created Bail Screening Unit.