Anthony Charles Ryan Wennekers was 26 when he disappeared from downtown Calgary on July 1, 2003. Official records list him as a White male born in 1976, about 6 feet 2 inches tall, 170 pounds, with brown hair and blue eyes and a slender build. Investigators noted many distinctive scars: around his mouth, on his right knee, slash-type scars on his left wrist, surgical scarring on his left knee, and a roughly four-inch scar on his forehead from an earlier skull fracture.

Authorities have not published a detailed timeline of his last day, who last saw him, what he was wearing, where he had been staying, or whether he was on foot or using a vehicle. The national missing-person record says he had a mental disability and was living what investigators described as a high-risk lifestyle, but it does not identify a specific incident, person, or event linked to his vanishing. No confirmed sighting or belongings tied to him have been disclosed.

His case appears in the national missing-person and unidentified remains system under reference 2014004549, with Calgary Police Service case LG04362888. Several name variations are recorded, including Ryan Wennekers, Ryan Anthony Wennekers, and Ryan Charles Wennekers. If anyone in Calgary in 2003 remembers seeing him, has old photos, or has information about his movements downtown on or around July 1, 2003, please come forward. Who might have known Anthony that summer?