President-Christopher Flanagan

 Chris Flanagan has a Criminal Justice Degree from Radford University (1987). He has over 30 years of Law Enforcement experience with Fairfax County Police Department and over 25 years as a detective working Narcotics, Robbery, and Homicide. He is currently assigned to the Cold Case Squad. Chris has been a member of Virginia Homicide Investigators Association since 2000 and has been the VHIA Training Director since 2012. Chris has been a member of Mid-Atlantic Cold Case Homicide Investigator’s Association since 2006. Chris is currently the President of the Mid-Atlantic Cold Case Homicide Investigator’s Association. Chris can be reached at


Vice President-Darrell Price


Darrell Price is a Sergeant with the Charlotte-Mecklenburg Police Department where he started in January of 1981. He has worked as a Detective in fields such as Robbery, Homicide, and The Violent Crimes Task Force for over 14 years. Once promoted to Sergeant Darrell supervised the Sexual Assault division for more than 8 years. He Retired from Full time Law Enforcement in 2010 and was re-hired to supervise the CMPD’s Cold-Case Unit which consist of both Homicides and Sex Assaults. The CMPD cold case unit has 3 full-time detectives, 4 part-time detectives and 14 volunteers. The unit carries a case load of over 3000 Sex Assaults and 600 Homicides.

Darrell is an active member with the North Carolina Coalition against Sexual Assault, and works regularly with the North Carolina Governor’s Crime Commission on issues related to violence against Women. Darrell can be reached at Darrell Price <>


Immediate Past President/Secretary- Argiro Magers


Argi Magers currently works at the Maryland State Police Forensic Science Division as the Manager of the Biology/DNA Section. 

Argi attended McDaniel College where she received a Bachelor of Arts degree in Biology and soon after a Master of Science Degree in Biology with emphasis in molecular genetics from Towson University. Upon completion of her studies, she worked at Johns Hopkins University for approximately one year doing research. She was hired by Maryland State Police where she started as a Forensic Chemist in the Biology section. She has worked on hundreds of cases and has analyzed thousands of samples. She was promoted to a casework supervisor in November of 2005 and in June of 2009 she took the position of the Manager of the Biology Section. She currently coordinates the work between the 4 units of the Biology Section (Database/Collections, Trial Casework, Investigative Casework /Cold Cases and the Technical/Validation unit). Argi has been involved in the Sexual Assault Forensic Examiners program, the SAKI committee for the State of MD.  and the training of Collectors of DNA samples from Offenders for the State of Maryland. She is a member of MidAtlantic Association of Forensic Scientists, a member American Academy of Forensic Sciences, the Forensic specialist for the Maryland NamUs Team (National Missing and Unidentified Persons System), the current Secretary and Immediate Past President of MACCHIA (Mid-Atlantic Cold Case Investigators Association) and a member of the FBI's Rapid-DNA Task Force which focus is to identify issues and put forth a plan for the integration of Point of Collection DNA analysis into the booking environment.  Argi can be reached at


Treasurer-Amy Kelly

 Amy Kelly currently works at the Maryland State Police Forensic Sciences Division. She is a Forensic Scientist in the Technical Group of the Biology Unit. In addition to analyzing casework she is instrumental in bringing new technologies online to enhance the capabilities and efficiency of the Biology Unit. In addition, she assists in educating investigators from allied agencies in efficient evidence prioritization and case submittal. She has a Bachelor of Science degree from Towson University with a major in Biology and a minor in Chemistry and a Master of Science degree from Johns Hopkins University in Biotechnology. She has served as the secretary for MACCHIA from 2006 through 2017 and as the treasurer from 2013 to current.  She is a longstanding member of MAAFS and has been a member of AAFS since 2016. Amy can be reached at


Training Coordinator-Frank Tona

 Frank P. Tona is currently a Sergeant with the Charles County, Maryland Sheriff's Office where he's worked since 2002. The Charles County Sheriff’s Office is a full-service police agency that serves about one hundred sixty thousand residents in Southern Maryland. He is currently assigned to his department’s Criminal Investigations Division where he supervises the Property Crimes Unit. He began his career in the Patrol Division and was later transferred to the Criminal Investigation Division. While assigned as a Detective, he worked cases in the Financial Crimes Unit, Special Victims Unit, Robbery Unit and the Major Crimes Unit. He has been involved with MACCHIA since 2009 and a Board Member since 2012. He has professional affiliations with the International Association for Identification, the National Police Foundation and is a member of the Vidocq Society. Frank is also on the faculty at Norwich University, the University of Maryland-University College and at the John Jay College of Criminal Justice. Frank can be reached at .


Assistant Training Coordinator-Don Chewning


Corporal Donald Chewning is retired member of the Pennsylvania State Police with 20-years of service.  His last assignments include that of Criminal Investigator and the Intelligence Division of the Bureau of Criminal Investigation.  Don also performed duties as a Criminal Investigation Assessment Unit Member and Major Case Team member at Troop H Headquarters in Harrisburg, Pennsylvania.  He assisted his team in the assessment of offender behaviors exhibited during the commission of violent crimes.

Don is also a retired member of the United States Army of 21-years.  He served in a multitude of positions within the Military Police Corps, Army Recruiting and the U.S. Army CID Command as a Special Agent.   Don is a Vincennes University Alumni as well as member of the Pennsylvania Homicide Investigator's Association." Don can be reached at


Board Member-Brian Stafford

 Brian Stafford has been a police officer with Montgomery County since 2003.  He has served in Patrol, District Investigations, Robbery, and is currently assigned to the Cold Case Squad.  He has been a member of MACCHIA since 2011.  Prior to becoming a Police Officer he taught Gross Anatomy at the Howard University College of Medicine and he holds a Ph.D. in Biological Anthropology.   Brian can be reached at


Board Member-Mark Janney


Mark Janney has been a police officer with the Montgomery County (MD) Police Department for 24 years. Det. Janney has been assigned as a plainclothes officer on a covert street crimes surveillance team; an undercover narcotics investigator and a homicide and sex crimes detective. While on the covert surveillance team Det. Janney initiated numerous on-view arrests for crimes including burglary, robbery, felony narcotics and weapons offenses and serious assaults. Det. Janney spent 12 years as a narcotics detective where he worked in an undercover capacity conducting hand to hand transactions for illicit drugs and weapons. Det. Janney was also assigned to the Major Offender/Conspiracy Unit as a lead case agent on numerous federal drug conspiracy cases. In 2011 Det. Janney was assigned to the Homicide/Sex Unit as a lead investigator. Currently, Det. Janney is assigned to the Cold Case Unit.

Additionally, Det. Janney has been an adjunct professor in Criminal Justice for the University of Maryland since 2001 and is co-owner of Signal 13 Training, LLC, which provides tactical and investigative training to law enforcement officers throughout the United States. Mark can be reached at


Board Member-David Sexton

 Sergeant David Sexton graduated from the University of Baltimore with a B.S., in Criminal Justice in 1991 and entered the Maryland State Police Academy in September 1993. He has been a Maryland State Trooper for over 24 years and has been assigned to the Homicide Unit for 12 years, currently assigned as the Cold Case Manager. Sergeant Sexton has investigated numerous homicides, death investigations and police involved shootings throughout his career and has attended many different training courses focusing on homicide investigation as well as cold case investigation. Sergeant Sexton has given numerous case presentations and has taught at various colleges as a guest instructor for Criminal Justice and Forensic classes. Prior to being assigned to the Homicide Unit he investigated white collar crimes at the Maryland Attorney General’s Office. Sergeant Sexton began his career at the Bel Air Barracks in Harford County where he was assigned road patrol and then was selected to be one of 4 criminal investigators for the barrack handling a multitude of crimes such as; theft, burglary, assaults, robbery, rape, and assisting with homicide investigations. Dave can be reached at