Forensic Technology Center of Excellence


Just Erroneous Identification

Just Erroneous Identification

In episode seven of the Case Studies season, Just Science sat down with John Vanderkolk and Marcus Montooth of the Indiana State Police to discuss erroneous identification and the Lana Canen case.

In 2005, Lana Canen was convicted as an accomplice for the robbery and murder of 94-year-old Helen Sailor. After serving eight years, her conviction was overturned, and she was released from prison. John Vanderkolk and Marcus Montooth were working for the Indiana State Police at the time that her conviction was being overturnedListen along as they discuss the need for updated training, the value of technical review, and the wrongful conviction of Lana Canen in this episode of Just Science. 

This episode of Just Science is funded by the National Institute of Justice’s Forensic Technology Center of Excellence [Award 2016-MU-BX-K110].

Original Release Date: December 17, 2020

Listen/Download at:


Guest Bio

John R. Vanderkolk received a BA in forensic studies and psychology from Indiana University in 1979. He is currently the laboratory manager at the Indiana State Police Laboratory, Fort Wayne. He became an ISP trooper in 1979, crime scene investigator in 1983, and criminalist in 1984.  He was trained in latent print, shoe and tire print, firearm and tool mark, and fracture examinations.  John, a distinguished member of the International Association for Identification (IAI), has been a member of the editorial board of the Journal of Forensic Identification, the Scientific Working Group on Friction Ridge Analysis, Study, and Technology (SWGFAST), the Expert Working Group on Human Factors in Latent Print Analysis, the IAI’s Standardization II Committee, and the Organization of Scientific Area Committees (OSAC) Physics/Patterns committee. In 2005, John served as a consultant for the US Department of Justice, Office of the Inspector General, reference the erroneous identification of Brandon Mayfield as the source of a latent print in the Madrid, Spain terrorist bombing case of 2004. Since 2002, John has been collaborating with Dr. Thomas Busey, Department of Psychological and Brain Sciences, Indiana University, by studying experts and novices in forensic comparative science. John has lectured in China, Singapore, India, Slovakia, the Netherlands, the United Kingdom, Canada, and throughout the USA on topics related to forensic comparative science.

Marcus Montooth obtained his Bachelor of Science degree in Biology from the University of Evansville in 2001, and has been employed as a Forensic Scientist with the Indiana State Police since 2003.  He is an IAI Certified Latent Print Examiner, an ASCLD/LAB Certified Technical Assessor, an Indiana Law Enforcement Academy Certified Instructor, and an adjunct professor at the University of Evansville teaching Introduction to Forensic Science.  He has presented on various latent print topics for the International Association for Identification (IAI), Indiana Division of the IAI, the National Institute of Justice (NIJ), and the National Institute of Standards and Technology (NIST). 

Related Content

2018 IPTES Plenary – Closing Keynote Speaker Adam Benforado

IPTES was designed to bring together practitioners and researchers to enhance information-sharing and promote collaboration among the impression, pattern, and trace evidence analysts, law enforcement, and legal communities. This original Live Webinar took place on 01/25/2018. The National Institute of…
Bloodstain pattern and a ruler

Lessons Learned from Proficiency Test Results in Bloodstain Pattern Analysis

This webinar originally occurred on April 15th, 2021 Duration: 1 hour The Daubert ruling by the Supreme Court established “the known or potential rate of error” as one of several factors to be used when assessing the scientific reliability or…