Ava Lodico, 18, died just three weeks before her high school graduation Mourners gathered on Monday, May 19, to honor a Massachusetts high school student who died in a car crash on prom night 18-year-old Ava Lodico died just three weeks ahead of her high school graduation She was the only person in the car when the accident happened Mourners are gathering to remember a Massachusetts high school student who died in a car crash on her prom night.