Cedric Laure Horn, 59, was fatally shot on the evening of December 8, 2014, while driving on Interstate 94 near the French Road exit in Detroit after a road rage incident that reportedly began earlier near Interstate 75. He worked as a distributor at Henry Ford Hospital in Wyandotte and was remembered by colleagues and family for the impact he had on their lives.

His son, Sean Lee, joined public appeals for witnesses to come forward. Coworkers honored Horn with a memorial ornament and released 59 balloons, one for each year of his life. No arrests have been announced, and the case remains unsolved.

If anyone witnessed the incident on Interstate 94 or had contact with Horn earlier that day, can you share what you know?