Bestselling author Michael Arntfield is a veteran police officer, professor, and television host. Known by his students as “Profficer,” an endearing blend of his academic and law enforcement professions, he teaches criminology at Western University and is a previous visiting Fulbright Chair at Vanderbilt University. With fifteen years of experience as a police officer, Arntfield offers a unique perspective into unsolved murder cases that combines suspenseful storytelling, academic knowledge, and investigative technology. He is the lead investigator on the true-crime series To Catch a Killer on the Oprah Winfrey Network in Canada and is the author of Murder City: The Untold Story of Canada’s Serial Killer Capital. He is also Director of the Murder Accountability Project in the United States and both the founder and Director of the Western University Cold Case Society in Canada.

When he isn’t teaching, investigating cold cases, or writing about them, he is researching long-term crime trends and developing new television projects. His latest research is on cyberbullying, social media, and psychopathy.