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Sean Hulsman, MEd, EMT-P is Director of Education at Twin City Ambulance Corporation in Western New York. A highly motivated professional educator, he combines extensive experience in teaching and curriculum development with 25 years of prehospital emergency care experience. He is a New York State certified science teacher, paramedic; and CIC and AHA instructor. Sean can be reached at shulsman@tcaems.com.

Joshua Lee is an active-duty police sergeant for the City of Mesa (Arizona) Police Department. Before promoting, Joshua served five years as a patrol officer and six years as a detective with the Organized Crime Section investigating civil asset forfeiture, white-collar financial crime, and cryptocurrency crimes.

Joshua is a cryptocurrency, money laundering and dark web consultant for banks, financial institutions and accountants. He also serves as one of Arizona’s subject matter experts on cryptocurrency crimes and money laundering.

Joshua holds a BA in Justice Studies, an MA in Legal Studies and an MA in Professional Writing. He has earned some of law enforcement’s top certifications, including the ACFE’s Certified Fraud Examiners (CFE), ACAMS Certified Anti-Money Laundering Specialist (CAMS) and the IAFC’s Certified Cyber Crimes Investigator (CCCI).

Joshua is an adjunct professor at a large national university and a smaller regional college teaching law, criminal justice, government, technology, and English courses.

Contact Joshua Lee.

David Peck serves as operations director for Statewide Transfer Ambulance & Rescue (STAR) in Crawfordsville, Indiana. He has been with the company for more than 20 years after starting his career as a paramedic. In his current role, David oversees business operations, including the deployment of new technology and employee training.

Brandon Heggie has been working in fire and EMS for over 15 years. He has numerous experiences ranging from being a tactical medic on a SWAT team, to a high angle rope rescue tech. He is currently a lieutenant firefighter/paramedic for a busy cross-staffed department. He obtained an Associate’s Degree in Emergency Medicine and Health Services.

Jim Imoehl is a training sergeant and Crisis Negotiation Team sergeant for the City of Madison (Wisconsin) Police Department. Prior to his current assignments, he served as a patrol sergeant, SWAT operator, Special Events Team grenadier sergeant, field training officer and member of the Honor Guard. His experiences outside of policing include 14 years in the US Navy Reserve where he served as a Senior Chief Petty Officer and 12 years with the Motorcycle Safety Foundation teaching about motorcycle safety and adult learning principles as a RiderCoach Trainer.

Andrea Marvin is a therapist at River Oaks Treatment Center, an American Addiction Centers facility.

Kevin Crocker is the division chief of quality and process improvement for the Montgomery County Hospital District in Conore, Texas. He has over 20 years of prehospital experience and has been a paramedic for 18 years. His primary interest is in clinical quality improvement. Kevin is active in contributing to the advancement of EMS field through prehospital research.

Julie Cavallero (Beach) is a former EMS captain, commander and deployment supervisor in Alameda County, California. She has a passion for helping military and first responders coping with post-traumatic stress, writing and social media. Cavallero currently works as an emergency planning coordinator with the Contra Costa County Office of the Sheriff.

Ava Kofman reports on technology for ProPublica.

She joined ProPublica in January 2019, after working as a contributing reporter at The Intercept, where she covered algorithms, artificial intelligence and surveillance technology. Her work has also appeared in The New York Times Magazine, Harper’s Magazine, The Atlantic, The Guardian, and The New Republic, among other publications.

To send Ava tips, email ava.kofman@propublica.org, or text 347-410-0113.

Miriam Childs is an experienced digital marketer who has served as Lexipol’s marketing coordinator since 2020. She has a bachelor’s degree in Marketing from the University of Texas at Arlington.