Row Officers

Commonwealth of Pennsylvania
Office of the Bucks County District Attorney

Meet the Attorneys

David W. Zellis
First Assistant District Attorney
Mr. Zellis is a graduate of the Emory University School of Law and has been with the office since 1985. Mr. Zellis is one of the District Attorney’s Office lead prosecutors as well as the head of the Bucks County Investigative Grand Jury. Mr. Zellis also serves as the Chief of Crimes Against Older Adults and is on the Bucks County Crimes Against Older Adults Task Force.

Stephen B. Harris
Chief of Appeals
Mr. Harris is a graduate of the Harvard Law School and has been with the office since 1968. Mr. Harris argues cases for the DA’s Office’s in the state and federal appellate courts.

T. Gary Gambardella
Chief of Career Criminal Division
Mr. Gambardella is a graduate of the Western New England College School of Law and has been with the office since 1987.  Mr. Gambardella is one of the District Attorney’s Office lead prosecutors and is charged with identifying and prosecuting individuals who are identified as career criminals.  Mr. Gambardella is cross-designated as an Assistant United States Attorney under Project Safe Neighborhoods, which allows some career criminals to be prosecuted federally.

Karen A. Diaz
Chief of Legal Division
Ms. Diaz is a graduate of the Temple University James E. Beasley School of Law and has been with the office since 1989. Ms. Diaz coordinates and oversees all prosecutions involving mental health concerns.  Ms. Diaz oversees appellate matters in federal and state court.

Jennifer M. Schorn
Chief of Pre-Trial Division
Ms. Schorn is a graduate of the Widener University School of Law and has been with the office since 1999. Ms. Schorn currently serves as the Chief of Pre-Trial Division.  In that capacity, she oversees the prosecution of cases at the preliminary hearing level.  She also coordinates training and staff development for the office.  Ms. Shorn formerly served as the Chief of Special Victims.

Michele Kelly Walsh
Chief of Juvenile Division
Ms. Walsh graduated from Temple Law School.  She first joined the DA’s office as a legal intern in 1996.  In 1997 Ms. Walsh joined the office full-time and later became a Chief Deputy District Attorney.  In 2002 she left the office to join the Pennsylvania Attorney General’s office as a Deputy Attorney General.  She served there until 2007, when she rejoined the DA’s office as Chief of Juvenile Prosecutions.  Ms. Walsh coordinates and supervises all matters in juvenile court for the DA’s office. 

Marc J. Furber
Chief of Economic Crimes and Arson Division
Mr. Furber is a graduate of the Temple University James E. Beasley School of Law and has been with the office since 2000.  Mr. Furber specializes in prosecutions involving arson.  He serves as a trial coordinator as well as overseeing the Economic Crimes Division.

Robin C. Twombly
Chief of Trial Division
Mrs. Twombly is a graduate of the Villanova University School of Law and has been with the office since 2000. Mrs. Twombly currently serves as the Chief of Trial Division.  In that capacity, she oversees how serious cases are pre-assigned to Assistant District Attorneys, and manages trial issues that may arise between the courts and the DA’s office.  Ms. Twombly also serves as a Trial Coordinator.

Daniel B. Sweeney
Chief of Narcotics and Forfeiture Division
Mr. Sweeney is a graduate of the Villanova University School of Law and has been with the office since 2001. Mr. Sweeney is the Chief of the Narcotics and Forfeiture Division.  Mr. Sweeney is the DA’s Office representative on the Bristol Weed and Seed program.  He also administers the Bucks County forfeiture program, which is one of the most successful in the state.  Mr. Sweeney also serves as a Trial Coordinator, as well as the Administrative Attorney for the office.

Robert D. James
Chief of Gang and Guns Division
Mr. James is a graduate of the Villanova University School of Law and has been with the office since 2002.  Mr. James currently serves as the Chief of Gangs and Guns Division.  Mr. James also serves as a trial coordinator and also coordinates training and staff development.  Outside of the office, he frequently lectures on Pennsylvania’s DUI law.  Mr. James also works with the US Attorney’s Office to prosecute cases through Project Safe Neighborhoods in Federal Courts.      

Monica W. Furber
Chief of Special Victims Division
Mrs. Furber is a graduate of the Villanova University School of Law and has been with the office since 2005.  She currently serves as the Chief of the Special Victims Division, which oversees prosecutions involving child abuse, elder abuse, domestic abuse, and sex crimes.  Before joining the DA’s office, Mrs. Furber previously served as an Assistant District Attorney in Delaware County, PA.  

Robert J. Salzer
Chief of Homicide by Vehicle Division
Senior Deputy District Attorney
Mr. Salzer is a graduate of the Catholic University of America, Columbus School of Law and has been with the office since 2005.  He is currently the Chief of the Homicide by Vehicle Division. Before joining the DA’s Office, Mr. Salzer served as a legal clerk for the Honorable Robert J. Mellon of the Bucks County Court of Common Pleas. Mr. Salzer coordinates the DA’s office’s community outreach efforts.  He also oversees the county’s ARD program. 

Nathaniel F. Spang
Senior Deputy District Attorney
Mr. Spang is a graduate of the Temple University James E. Beasley School of Law and has been with the office since August of 2005.  He is currently the Deputy Chief of the Special Victims Division.  He also oversees state parole, pre-release, and pardon matters.  Mr. Spang previously served as an intern with the DA’s Office during law school.

Sara Johnson Rothman
Senior Deputy District Attorney
Mrs. Rothman is a graduate of the Temple University James E. Beasley School of Law and has been with the office since August of 2005.  She is currently assigned to the Pre-Trial division where she oversees preliminary hearings throughout the county.  Ms. Rothman also coordinates the office internship and externship programs.  Mrs. Rothman previously served as an Intern with the DA’s Office during law school.

Laura M. Siegle
Deputy District Attorney
Ms. Siegle is a graduate of the Temple University James E. Beasley School of Law School of Law and joined the DA’s Office in 2006. Before joining the office, Ms. Siegle worked for the law firm of Worth, Magee & Fisher, P.C.  Ms. Siegle is currently assigned to the Narcotics and Forfeiture Division.  Ms. Siegle also assists with cases before the investigative grand jury.   

Mark Cheramie Walz
Deputy District Attorney
Mr. Cheramie Walz is a graduate of the Villanova University School of Law and joined the DA’s Office in 2006.  He is currently assigned to the Child Abuse section of the Special Victims Division.  Mr. Cheramie Walz also oversees computer crimes for the DA’s office.  He frequently lectures in the community to both students and parents on internet and computer safety.  He is also assigned to oversee small games of chance within the county.   

Edward M. Louka
Deputy District Attorney
Mr. Louka is a graduate of the Widener University School of Law and joined the DA’s Office in 2006.  He is currently assigned to the Adult Sex Crimes section of the Special Victim’s Division.  Mr. Louka also assists in the administration of the DA’s office internship and externship programs.   

Maureen A. Flannery
Deputy District Attorney
Ms. Flannery is a graduate of the Catholic University of America, Columbus School of Law and joined the DA’s Office in 2006. Before joining the DA’s Office, Ms. Flannery served as a law clerk to the Honorable William W. Caldwell, Senior District Judge, Federal District Court for the Middle District of Pennsylvania.  Ms. Flannery is currently assigned to the Legal Division.

Blake M. Jackman
Assistant District Attorney
Mr. Jackman is a graduate of Temple University, Beasley School of Law.  He joined the DA’s office in 2007.  Mr. Jackman is currently assigned to the Homicide by Vehicle Division.  He is also charged with the office’s Juvenile Alcohol Awareness Program.  Mr. Jackman also reviews miscellaneous legal petitions for the DA’s office. 

Thomas Distefano
Assistant District Attorney
Mr. Distefano is a graduate of the Villanova University School of Law.  He joined the DA’s office in 2007.  Mr. Distefano is currently assigned to the Narcotics and Forfeiture Division.  He also supervises the review of Private Criminal Complaints, and Nunc Pro Tunc appeals.

Daniel J. O’Riordan
Assistant District Attorney
Mr. O’Riordan is a graduate of the Villanova University School of Law.  He joined the DA’s office in 2007.  Mr. O’Riordan is currently assigned to the Economic Crime and Arson Division.  He serves as the office Emergency Response Liaison.  Mr. O’Riordan also reviews private criminal complaints. 

Michael K. Martin
Assistant District Attorney
Mr. Martin is a graduate of Widener University School of Law.  He joined the DA’s office in 2007.  Mr. Martin is currently assigned to the Domestic Abuse section of the Special Victims Division.  He also supervises the licensure of private detectives within the county. 

Holly E. Smith
Assistant District Attorney
Ms. Smith is a graduate of Widener University School of Law.  She joined the DA’s office in 2007.  Before coming to the DA’s office, she served as a judicial clerk to the Honorable Jeffrey L. Finley in the Bucks County Court of Common Pleas.  Prior to law school, Ms. Smith received her Masters Degree in Counseling Psychology.  Ms. Smith is currently assigned to the Child Abuse Section of the Special Victims Division.  She also serves as the liaison to the Office of Inspector General regarding the prosecution of Welfare Fraud cases.   

Abigail T. Fillman
Assistant District Attorney
Ms. Fillman is a graduate of Temple University, Beasley School of Law where she received honors for trial advocacy.  She joined the DA’s office in 2007.  She is currently assigned to the Child Abuse Section of the Special Victims Division.  She was previously a legal intern in the District Attorney’s office in Chester County.  Ms. Fillman also reviews private criminal complaints. 

Robert F. Manzi
Assistant District Attorney 
Mr. Manzi is a graduate of the Widener University School of law.  He joined the DA’s office in 2007.  During law school and graduate school, Mr. Manzi worked in the Juvenile Justice field.  He is currently assigned to the Economic Crime and Arson division.  He also serves as the office liaison to the Department of Health, and is also the liaison for Housing Fraud Initiatives.

Steven M. Jones
Assistant District Attorney
Mr. Jones is a graduate of the Widener University School of Law.  He joined the DA’s office in 2007.  Mr. Jones is currently assigned to oversee crimes against Older Adults for the Special Victims Division.  Mr. Jones also reviews petitions for the expungment of criminal records. 

Josh Tebay
Assistant District Attorney
Mr. Tebay is a graduate of the Widener University School of Law.  He joined the DA’s office in 2008.  He is currently assigned to the Gangs and Guns Division. 

Adam Tanker
Assistant District Attorney
Mr. Tanker is a graduate of the Widener University School of Law in Harrisburg.  He joined the DA’s office in 2008.  He is currently assigned to the Gangs and Guns Division.  In addition to his other duties, Mr. Tanker is assigned to review private criminal complaints.

Geoffrey Peterson
Assistant District Attorney
Mr. Peterson is a 1997 graduate of the University Of Pittsburgh School Of Law.  He joined the DA’s office in 2008.  Prior to joining the DA’s office in Bucks County, he served as a District Attorney in Chemung County, New York for five years.  In addition to his other duties, Mr. Peterson also administers the office law library. 

Matthew Hoover
Assistant District Attorney
Mr. Hoover is a graduate of the Dickinson School of Law of Penn State University.  He joined the DA’s office in 2008.  He is currently assigned to the Homicide by Vehicle Division.

Jessica Arndt
Assistant District Attorney
Ms. Arndt is a graduate of the Widener University School of Law.  She joined the DA’s office in 2008.  She is currently assigned to the Domestic Abuse section of the Special Victims Unit.  She also reviews petitions for PFA Contempt for Weapon Seizure. 

Ryan Hyde
Assistant District Attorney
Mr. Hyde joined the DA’s office in 2009.  He is a graduate of Villanova University School of Law.  Prior to law school, Mr. Hyde worked in the pharmaceutical industry for seven years.

Courtney Crowley
Assistant District Attorney
Ms. Crowley is a graduate of the Catholic University of America, Columbus School of Law.  She joined the DA’s office in 2009.  Prior to joining the DA’s office, Ms. Crowley served as a judicial clerk to the Honorable Wallace H. Bateman in the Bucks County Court of Common Pleas.

Office of the District Attorney
Bucks County Courthouse
55 East Court Street
Doylestown, PA 18901
Phone: 215-348-6344
Fax: 215-348-6299