On March 31, 2021, at approximately 10:30 p.m., the victim, Demajai Oliver, a 17-year-old Black male, was in the middle lane of the freeway at 8200 John Carpenter Frwy. The victim was struck by multiple unknown vehicles and was pronounced deceased at the scene. Through the course of the investigation, it was determine that Oliver was the victim of a homicide.

On Monday April 12, 2021, Demario Montague was arrested by an outside agency on a robbery warrant. Dallas homicide detectives interviewed Montague as a person of interest in a Dallas homicide. Detectives began tracking Montague and determined he fled to Tennessee.

On May 13, 2021, detectives requested US Marshals assistance in apprehending this wanted person. The US Marshals Memphis team took Montague into custody without incident for the murder of Demajai Oliver.