Police lay another first-degree murder charge in case of Clarence-Rockland man (opens original article in a new tab)

Police have charged a third person with first-degree murder in the case of Robert Prevost, whose body was found in the Ottawa River. The three accused face charges including conspiracy to commit murder.

• A third person, Yvon Vieno, is charged with first-degree murder in the case of Robert Prevost, whose body was found in the Ottawa River.
• The three accused — Jessica St. Michael, Luc Décarie, and Yvon Vieno — face charges including conspiracy to commit murder in connection to Prevost's death.
• Robert Prevost was reported missing in March 2025 and his body was discovered in May 2025 in the Ottawa River, leading to a homicide investigation.