Sean Tan was 23 when he was last seen at his apartment on Huron Street in Toronto on March 7, 2011. Family and police expressed concern that he may have been in a state of emotional distress at the time he left.

He is described as Asian, about five feet nine inches tall, 157 pounds, with black hair, brown eyes and a mole on his back. When last seen he was believed to be wearing a black waist-length jacket, blue denim jeans, a Nike hat and K-Swiss running shoes. The Toronto Police Service investigated but reported few leads and no credible sightings or contact in the weeks and months afterward.

The circumstances of his departure from daily life are unknown and the case remains an open missing person investigation. If anyone knew Sean, remembers seeing him after March 7, 2011, or has information about his whereabouts, please contact the Toronto Police Service.