Adrien went missing on June 12, 1972 from Holmes Lake, Calabogie, Ontario, Canada. He was five years old that day when he wandered off toward a wooded area, never to be seen again. Police released a sketch last year of what he would look like at age forty-two. When Adrien went missing, he had blond hair, brown eyes, and a scar over his left eye. He was wearing an orange striped shirt, jeans, blue nylon parka, and running shoes.