Samuel Samuelson, 58, was last seen on January 29, 2004, while riding a snowmobile on the lake at Île Bizard, an island near Montreal. At some point during that outing the ice on the lake is believed to have given way, and Samuel and his snowmobile were pulled into the water. That evening marked the last time anyone saw or heard from him.

The prevailing account describes his disappearance as a sudden accident caused by breaking ice. Despite searches and ongoing attention, the water has not yielded his remains and the Service de police de la Ville de Montréal continues to list him as an unresolved missing person. His family remains without closure.