Costello was last seen by his parents in Orleans on November 8, 2024, around 8:00 AM. Later that morning, reports emerged of a male jumping off the Sagamore Bridge. Despite an extensive search, no body has been found, and Costello remains missing. His vehicle was located at the Sagamore Park and Ride near the bridge. Footage from the bridge shows a man matching Costello’s appearance and wearing similar clothing—a dark sweatshirt with a light logo and light grey sweatpants—jumping from the bridge. Costello had a buzz cut and no tattoos.