Our Experts

Tarah Helsel

Tarah Helsel is a Supervisor and Forensic Scientist, and testifying expert at RJ Lee Group. She is an expert in the preparation, analysis, interpretation and reporting of gunshot residue (GSR) evidence using Scanning Electron Microscopy/Energy Dispersive Spectroscopy (SEM/EDS). Ms. Helsel is also an active member of the team responsible for RJ Lee Group’s successful laboratory accreditation by ANSI-ASQ National Accreditation Board in the areas of Trace Evidence – Gun Shot Residue and GSR Distance Determination. Utilizing near-infrared spectroscopy to create a reference library of spectra, she also has researched the instrumentation and its relevant pharmaceutical applications.

Ms. Helsel has experience testifying for the defense and prosecution, and is accepted as an expert in the area of GSR in Kansas, Maryland, Delaware, Louisiana, Michigan, Hawaii, Washington, Florida, Pennsylvania, California, New York, Nebraska as well as Bermuda. She is a member of the Mid-Atlantic Association of Forensic Scientists (MAAFS) and the American Society of Trace Evidence Examiners (ASTEE).

Carl Pro, PMP, RMP
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Carl Pro, PMP, RMP VP, Business Development Information and Software Solutions
Duane Conley
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Duane Conley VP, Business Development Information and Software Solutions
Jerome Schafer
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Jerome Schafer Sales & Client Services Manager
Bryan R. Bandli, Ph.D.

Bryan Bandli, Ph.D. is a mineralogist and microscopist with two decades of practical experience performing microanalytical investigations of a wide variety of materials. He has w...

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Bryan R. Bandli, Ph.D. Mineralogist & Microscopist
Kristin Bunker, Ph.D.

Kristin L. Bunker, Ph.D. in Materials Science and Engineering, is currently a Senior Scientist at RJ Lee Group, Inc. where she specializes in the analysis and characterization of ...

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Kristin Bunker, Ph.D. Senior Scientist
Gary Casuccio

Mr. Gary Casuccio is a Senior Scientist at RJ Lee Group, Inc., where he focuses on environmental particulate analysis, air quality and nanomaterials characterization. Mr. Casuccio ...

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Gary Casuccio Senior Scientist
Christopher M. Hefferan, Ph.D.

Dr. Chris Hefferan is an applied physicist specializing in first principles application to technical problems that caters to a broad range of disciplines and industries. He serves ...

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Christopher M. Hefferan, Ph.D. Applied Physicist & Consulting Scientist
Tarah Helsel

Tarah Helsel is a Supervisor and Forensic Scientist, and testifying expert at RJ Lee Group. She is an expert in the preparation, analysis, interpretation and reporting of gunshot r...

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Tarah Helsel Supervisor and Forensic Scientist
Lykourgos Iordanidis, Ph.D.

Dr. Lykourgos Iordanidis is a senior chemist and the Laboratory Manager of Analytical Services for RJ Lee Group. He oversees and directs the organic and inorganic laboratories in p...

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Lykourgos Iordanidis, Ph.D. Laboratory Manager of Analytical Services & Senior Chemist
Richard J. Lee

Dr. Lee has over 30 years’ experience specializing in forensic problem solving and technology development. He has managed laboratory operations, designed and developed novel elec...

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Richard J. Lee CEO & Consulting Scientist
Alan Levine, Ph.D.

Dr. Alan Levine has more than 40 years of experience in materials research and laboratory management. He currently heads RJ Lee Group’s technical support program for Delta-Ener...

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Alan Levine, Ph.D. Senior Consulting Scientist
Allison Murtha Laneve

Allison Murtha Laneve is the Manager of RJ Lee Group’s Forensic Science Department, overseeing and participating in the preparation, analysis, interpretation and reporting of gu...

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Allison Murtha Laneve Manager & Forensic Scientist
Matthew Perricone, Ph.D.

Dr. Matthew Perricone is a Principal Investigator and the Technical Consulting Group Manager at RJ Lee Group, Inc., where he directs and performs root cause failure analyses for ...

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Matthew Perricone, Ph.D. Principal Investigator & Technical Consulting Group Manager
Keith Rickabaugh, CIH, MBA

Keith Rickabaugh is a Principal Investigator at RJ Lee Group where he utilizes his broad range of laboratory, field and project/program management experience to routinely support c...

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Keith Rickabaugh, CIH, MBA Technical Director, Materials and Analytical Services
Matthew Sanchez, Ph.D.

Dr. Matthew Sanchez is a Principal Investigator at RJ Lee Group where he leads quality assessments of vermiculite, talc, carbonates, olivine, and other industrial minerals includin...

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Matthew Sanchez, Ph.D. Principal Investigator
April E. Snyder

Ms. Snyder has over 20 years’ experience in concrete petrographic studies and serves as the Construction Materials Laboratory Manager at RJ Lee Group. She conducts evaluations of...

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April E. Snyder Construction Materials Laboratory Manager & Senior Scientist
Anthony F. Bentivegna, Ph.D., PE

Dr. Bentivegna is a Professional Engineer (PE) and an affiliated consultant with Durability Engineers (DE). He has over 14 years of experience in durability engineering and materia...

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Anthony F. Bentivegna, Ph.D., PE Construction Materials Affiliated Consultant
Keith Wagner

Keith Wagner is a graduate of the Pennsylvania State University with a degree in Physics and Physical Metallurgy. He has over 30 years of experience and is currently a Senior Mater...

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Keith Wagner Senior Materials Scientist
Michael J. Deible, Ph.D.

Michael J. Deible, Ph.D. is a Consulting Scientist at RJ Lee Group, with extensive expertise that spans many industries, providing a broad range of services for materials character...

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Michael J. Deible, Ph.D. Consulting Scientist
Steven J. Monaco, Ph.D.

Steven Monaco, Ph.D. is a Senior Consulting Scientist at RJ Lee Group. Over the past 20 years, he has led teams and projects while solving complex industrial manufacturing and mate...

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Steven J. Monaco, Ph.D. Senior Materials Scientist
Stephen M. Stacey, PE

Stephen M. Stacey is a Professional Engineer (PE) and an affiliated consultant with Durability Engineers. He has over 8 years of experience in concrete materials, concrete, forensi...

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Stephen M. Stacey, PE Construction Materials Affiliated Consultant
Monica McGrath-Koerner

Monica McGrath-Koerner has been a talc & asbestos expert with RJ Lee Group since 2014. She has evaluated and analyzed a variety of materials using TEM, SEM, and PLM for mineral...

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Monica McGrath-Koerner Consulting Scientist