On April 6, 2022, the Irvine Police Department conducted a welfare check at a residence on Riverboat in Irvine, California, following concerns from extended family members who had been unable to contact the residents for over a year. Upon entering the home, officers discovered the severely decomposed bodies of three adults. The deceased were later identified through dental records as 63-year-old Serge Poirier, 54-year-old Karina Poirier, and a third individual believed to be 21-year-old Morgan
Poirier, pending DNA confirmation. All three individuals had sustained gunshot wounds, and a firearm was recovered at the scene. The case is being investigated as a murder-suicide, with no signs of forced entry or foul play.
The investigation revealed that the deaths likely occurred over a year before the discovery, given the advanced state of decomposition. The Irvine Police Department, in collaboration with the Orange County Sheriff-Coroner's Division, has been working to piece together the events leading up to the tragic incident. The initial findings suggest that Serge Poirier may have been responsible for the deaths of Karina and Morgan Poirier before taking his own life. This theory is supported by the presence of the firearm and the lack of evidence indicating the involvement of any external parties.
As of now, there have been no arrests or suspects beyond the initial murder-suicide conclusion. The investigation remains open, with authorities continuing to gather information and follow up on any leads. The Irvine Police Department has urged anyone with additional information to come forward to aid in the ongoing investigation. The tragic deaths of the Poirier family have left the community in shock, and efforts are being made to provide support to the surviving family members and friends.
