Oklahoma State University Center for Health Sciences
Oklahoma State University Center for Health Sciences

School of Forensic Sciences Faculty and Staff

Robert Allen, Ph.D.Robert W. Allen, Ph.D.
Department Chair

Professor of Forensic Sciences
Adjunct Professor of Biochemistry
Track lead: Forensic Biology/DNA
Room E-323

Dr. Allen is the school head, a Professor of Forensic Sciences and the Director of the Human Identity Testing Laboratory. Prior to joining OSU, he was a laboratory Director of the H.A. Chapman Institute of Medical Genetics and was a Scientific Director with the American Red Cross. He earned his Ph.D. in Cell Biology from Purdue University and completed postdoctoral work at the Scripps Clinic and Research Foundation. Dr. Allen is widely published and active in numerous professional scientific organizations. The focus of his research is variability in human DNA.


Ronald R. Thrasher, Ph.D.Ronald R. Thrasher, Ph.D.
Associate Professor of Forensic Sciences
Track lead: Forensic Psychology
Room E-317

Dr. Thrasher heads the Forensic Psychology track at the OSU Center for Health Sciences and is also a Visiting Assistant Professor for the OSU Department of Sociology and Adjunct Professor in the OSU Department of Psychology. He received a Ph.D. in Sociology at Oklahoma State University, where he also received a master’s degree in corrections and a bachelor’s degree with a double emphasis in biology and psychology. Dr. Thrasher obtained a Criminal Justice Diploma from the University of Virginia while attending the FBI National Academy, Quantico, VA. His areas of expertise include behavioral analysis of violent crime scenes, offender profiling, group deviant behavior, and violent serial criminal offenders. His writing appears in various publications, and he is a frequent presenter at national, regional, and state conferences. He is also involved in multiple community and professional organizations and currently serves as President of the Payne/Logan County Drug Court. His experience also includes 33 years with the Stillwater (OK) Police Department, where he ultimately retired as Deputy Chief of Police.


Jarrad R. Wagner, Ph.D.Jarrad R. Wagner, Ph.D. 
Professor of Forensic Sciences
Track lead: Forensic Chemistry
Room E-373


Dr. Wagner teaches courses and mentors research students in the area of forensic toxicology and trace chemistry.  Dr. Wagner formerly served as a Chemist for the FBI Laboratory, where he worked on crime scene investigations involving hazardous materials.  His prior law enforcement experience also includes time as a Forensic Scientist in the Toxicology section of the Orange County (CA) Sheriff-Coroner’s office and service as a Reserve Police Officer in the City of Irvine, CA.  Dr. Wagner holds a Ph.D. in Environmental Toxicology from the University of California at Irvine.  He has published several articles in scientific journals and has made presentations related to forensic science for professional institutes and trainings throughout the world.


FrucciJohn J. Frucci III, Ed.S.
Assistant Professor of Forensic Sciences
Track lead: Arson and Explosives Investigation
Director, CENFEX
Room E-339A


Dr. Frucci is a former bomb squad commander from Newark, New Jersey, with 20 years of experience in law enforcement. He began his career in 1993 as a sheriff's officer in the Essex County Sheriff's Office in Newark.  Frucci has also worked as a detective in the fugitive squad and as a fire and explosion investigator for the Essex County Prosecutor's Office Arson Task Force.  He serves on several national boards assisting agencies with training and curriculum design.  He is active in multiple charitable foundations that assists injured law enforcement and military personnel. Frucci earned his bachelor's degree in political science from Rutgers University in 1997. He earned his master's degree in education administration in 2000 and his education specialist degree in education administration and supervision in 2006, both from Seton Hall University. He received his Ed.D. degree from OSU-Tulsa in 2017.


Jane PritchardJane Pritchard, B.S.
Director of Quality
Adjunct Instructor of Forensic Sciences
Room E-322
918-519-6979 (cell)


Jane Pritchard serves as the Director of Quality for the School of Forensic Sciences. She is the FEPAC coordinator for the School, teaches in the graduate program, and is the Manager for the Human Identity Testing Laboratory, an AABB accredited DNA laboratory that performs relationship and forensic testing. She has certifications as a Medical Technologist and as a Certified Laboratory Specialist in Molecular Biology.  Before joining the OSU staff, she served as the Operations Manager at the H. A. Chapman Institute of Medical Genetics.  She chaired the National Credentialing Agency’s committee that established the certification examination for molecular biology technologists.  She is a past President of the Association of Genetic Technologists and currently serves on the Relationship Testing Standards committee for the AABB.  Ms. Pritchard received her B.S. in Medical Technology from the University of North Carolina.


GersbeckTom Gersbeck, M.F.S.
CENFEX Military Liaison
Adjunct Instructor of Forensic Sciences
USMC, CWO-2 (Ret.)
Room E-339B

After retiring from the Marine Corps as an Explosive Ordnance Disposal (EOD) Officer in 2001, Tom joined the Federal Air Marshal Service and served as explosives branch chief of the National Explosives Detection Canine Team Program, as well as the Explosives Operations Division technology officer and as the Philadelphia Field Office explosives security specialist.  Tom also served multiple tours in Afghanistan as the program manager of the JATAC Mobile Training Teams, as well as the triage laboratory lead and biometrics technician in the RC-North and RC-East CEXC.  Tom’s book, Practical Military Ordnance Identification is part of the “Practical Aspects of Criminal and Forensic Investigation” series created by Vernon Geberth, was published in 2014.  Tom earned his Bachelor of Science degree from Park University in 1998 and a Master of Forensic Sciences degree in 2000 from National University.  In 2015, Tom was promoted to Fellow in the American Academy of Forensic Sciences.  


Aaron ChristensenAaron T. Christensen, M.S.
Academic Coordinator
Room E-313
918-561-1108 1-800-677-1972, ext 1108
918-561-5729 (fax)


Aaron T. Christensen joined the School of Forensic Sciences in the summer of 2016 as the Academic Coordinator for the Master of Science in Forensic Sciences and the Forensic Nursing programs.  Aaron facilitates recruitment, admissions, matriculation, graduation, and alumni relations for the department.  His background includes several years of higher education administration, most recently serving in the OSU Graduate College for eight years.  Aaron earned an M.S. in International Studies and a B.A. in Sociology with a minor in Spanish.  


Penelope Carr, BSPenelope Carr, B.S.
Academic Coordinator, Arson and Explosives Investigation
Room E-315
918-561-8424 or 1-800-677-1972, ext. 8424
918-561-5729 (fax)


Before joining the department, Penelope was Resident Program Coordinator for the Department of Surgery at the University of Oklahoma College of Medicine, Tulsa.  She has also served as Director of Admissions at the Oregon College of Art and Craft, and for both the College of Optometry and the Graduate and Professional Programs at Pacific University.  Ms. Carr holds a B.S. degree from the University of Oregon.


Phylis EmeryPhylis Emery
Coordinator, Clinical Testing Services
Room E-321

Phylis is often the initial point of contact with clients requesting training or laboratory testing services. In her role in the Human Identity Testing Laboratory, she coordinates sample collections all over the world.  She also meets with local clients for the Human Identity Testing Laboratory.  Before joining Oklahoma State University, she served as the Coordinator for the Human Identity Testing Laboratory for the H. A. Chapman Institute of Medical Genetics.  


Jun Fu, Ph.D.Jun Fu, Ph.D.
Director Designee, Human Identity Testing Laboratory
Research Associate
Room E-333

Dr. Fu performs relationship testing, reviews and signs data reports for the Human Identity Testing Laboratory, and assists graduate students with research projects in forensic biology. She previously directed clinical testing in the Biochemical Genetics Laboratory for the H. A. Chapman Institute for Medical Genetics. Dr. Fu holds a Ph.D. in Biochemistry and Molecular Biology from Oklahoma State University and a B.S. degree from Fudan University in Shanghai, China.

Matthew K. Green, Ph.D.
Research Assistant

Dr. Green is a Laboratory Scientist working in the Center for Fire and Explosives, Forensic Investigations, Training and Research (CENFEX). Dr. Green has expertise in toxicology and analytical chemistry applications. He also has extensive research experience related to clandestine laboratory synthesis and trace detection within the environment. With CENFEX, Dr. Green provides overall operation of the explosives research laboratory, including involvement with training and research projects for graduate students. He holds a Ph.D. in Veterinary Biomedical Sciences, Graduate Certificate of Interdisciplinary Toxicology, and Master of Science in Forensic Sciences with an emphasis in Forensic Toxicology from Oklahoma State University, and a Bachelor of Science from Ohio Northern University.

Allison VeitenheimerAllison Veitenheimer, Ph.D.
Forensic Toxicologist 
Room E-377

Dr. Veitenheimer is a Research Toxicologist working in the Oklahoma State University Forensic Toxicology and Trace Laboratory.  She has extensive experience in method development and validation in drug and explosives analysis using both LC/MS/MS and GC/MS.  Dr. Veitenheimer is the technical supervisor of the FTTL, a COLA accredited clinical toxicology laboratory, where she verifies all regulatory requirements are met and upheld as well as oversees the overall operation of the laboratory.  She also teaches in the graduate program and supervises student research projects.  Dr. Veitenheimer holds a Ph.D. in Veterinary Biomedical Sciences, a Graduate Certificate of Interdisciplinary Toxicology, and a Master of Science in Forensic Sciences with an emphasis in Forensic Toxicology from Oklahoma State University, and a Bachelor of Science in Forensic Science from Baylor University.  She is a member of several scientific organizations, has published articles in scientific journals, and made presentations related to toxicology and explosives for professional organizations and trainings across the country. 

Jennifer Kline, B.S.
Program Specialist, Arson and Explosives Investigation
Room E-344

Jennifer Kline joined the Forensic Sciences Department in the fall of 2016.  Jennifer manages the Graduate Certificate in Arson and Explosives Investigation.  Her background includes 13 years of experience working in education in public schools.   Ms. Kline received her B.S. in Business Administration from Oklahoma State University.

Samantha Rankin
Administrative Assistant
Room E-311

Ms. Rankin joined the School of Forensic Sciences in the spring of 2017 to provide administrative support for the Master of Science in Forensic Sciences and the Forensic Nursing programs, working alongside the Academic Coordinator. She serves as admissions liaison, initial contact, and logistical support for the program. Samantha previously served administratively through the Muscogee (Creek) Nation Department of Health.

Adjunct Faculty
Adjunct Faculty (AEI)

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