Marquis Grider-Sims was 22 when he was fatally shot in Muskegon, Michigan, on September 4, 2015. His death occurred during a late-summer wave of shootings that led authorities to form a major case task force to investigate several interconnected violent incidents in Muskegon and Muskegon Heights.

Investigators looked into multiple related shootings from that period. Darnell Byrd, who was considered a suspect in a separate East Park Manor apartment shooting, was found dead in a Muskegon Heights alley on September 5, 2015. Two other men, Kierelle Burns and Josiah Fousse, were sought in connection with the East Park Manor incident; an arrest warrant for assault with intent to murder was issued for Fousse, and he was later apprehended. No definitive public link has been made between those suspects and the homicide of Grider-Sims.

If anyone knew Marquis, witnessed the shooting, or has information that could help the investigation, please come forward.