Penrod was featured in early seasons of the show. He died at age 55 after a battle with brain cancer . Broward County Sheriff’s Office (BSO)

One of the most prominent faces from the Memphis episodes, Merritt was a 28-year veteran of the force. He died at age 56 from COVID-19 complications . Louisville Metro Police Department (LMPD)

While she was a member of the LMPD, her death occurred during a traffic stop when her patrol car was struck by an impaired driver. Though she appeared in the department during the First 48 era, her death was a major line-of-duty loss for the unit featured on the show. Dallas Police Department (DPD)