Detective William “Bill” Hanson retired from his law enforcement career in November 2016. He left with over twenty-six years of experience in law enforcement and worked thousands of homicides in the capacity of Patrol Deputy, Police Officer, Scene Detective, and Lead Investigator. Bill started his career as a Patrol Deputy in Mohave County, AZ, District 2/Bullhead Sector. While with the Sheriff’s office, Bill was an FTO, SWAT Operator and SWAT Team Leader. Bill transferred to Tucson Police Department in 1993. Bill was promoted to Detective in 1998 and worked in the Burglary and Aggravated Assault Units. While in the Aggravated Assault Unit, Bill carried his own homicide cases and assisted the Homicide Unit beginning in 2000. He was the senior member of the Homicide Unit from 2009-2015. Detective Hanson has been involved with the Arizona Homicide Investigators Association (AHIA) for over 19 years.

Mrs. Tambasco began her career in June of 1989 in the Communications Division as a 911 Emergency Operator, transferring to the Crime Scene Unit in 1994. There she worked as a Crime Scene Investigator, Trainer and Senior Crime Scene Investigator until 2005 when she was promoted to the Supervisor of the Unit. In this role she was responsible for the administrative and technical oversight of five Forensic Technicians, one PT Forensic Technician, the Pre-Screening DNA Lab and four Latent Fingerprint Examiners. In 2015, she was promoted to the rank of manager, where she handled all the daily operations of the units, yearly budget, proficiency testing, training, audits, case reviews and the writing and revisions of standard operating procedures. Throughout her career, Mrs. Tambasco has worked hundreds of crime scenes from minor burglaries to homicides. For the last 30 years, she has worked for the Osceola County Sheriff's Office.

Dr. Murphy brings 40 plus years of law enforcement and public service experience to the position serving in a multitude of roles giving him a unique perspective beginning with boots on the ground to Chief of Police. His journey of public service began as an entry level police officer in Kansas City, Kansas to serving as Chief of Police in Mesquite, Nevada. Dr. Murphy most recently served as Director of Special Services for The National Center for Missing and Exploited Children in Alexandria, Virginia where he was responsible for the Long Term Missing and Unidentified, Forensic Services, Image Enhancement/Age Progression Units while serving as the National Amber Alert Coordinator. Prior to his time on the national stage, Dr. Murphy served as Coroner for the Clark County Office of the Coroner/Medical Examiner for 13 years while simultaneously acted as the Interim Director of Juvenile Justice Services and Chief Lobbyist for the 76th & 77th Legislative Sessions of the Nevada Legislature.

Detective James Hensley has been with the Milwaukee Police Department for 22 years. The first 7 of those years were spent working in patrol as a police officer, primarily working on the north side of Milwaukee in Districts 5 and 7. James was promoted to Detective in 2002. After three years of investigating a wide variety of felonies, James was chosen to work in the Homicide Unit, where he is still assigned today. Along with his work on the Homicide Unit, James has been actively involved with training members of the Milwaukee Police Department, specifically in the areas of: Major Crime Scene Investigations, Death Investigations, Interviewing of Victims and Witnesses, Use of Polygraph in Criminal Investigations, and Interrogations.

Jim Holmes has been a certified law enforcement officer in Wisconsin since 1995. He has served with Dane County Sheriff's Department as a sheriff's aide and a patrol officer with the Fitchburg Police Department before obtaining a position as a special agent with the Wisconsin Department of Justice/Division of Criminal Investigation (DCI) in 1996. Jim was assigned to DCI's White Collar Crimes Bureau for four years, while also being assigned to DCI’s Internet Crimes Against Children (ICAC) Unit from 1998-2001. Jim joined DCI’s Major Crimes Unit in 2000 where he has been involved in numerous adult and child homicide and equivocal death investigations, officer involved death investigations, murder-for-hire cases, missing and abducted children cases, child sexual exploitation, and child abuse and neglect cases. In his assignment to DCI’s Major Crimes Unit, Jim has continuously been assigned and has worked several cold case homicide investigations.