On the evening of January 15, 2015, Corey Mattison, 37, was shot and killed inside his Ashburn, Virginia, home in a domestic-related homicide. The shooting occurred at about 9:30 p.m. in the 44200 block of Sonora Lane. Law enforcement says the perpetrator broke into the residence and opened fire while two of Denise’s children were inside; the children were unharmed. Denise Mattison and another child were returning home as the events unfolded, and numerous 911 calls were made from the residence. Reports indicate Corey Mattison may have been trying to lead the intruder away from his family when he was shot. Minh D. Nguyen, identified as the ex-husband of Denise Mattison, was taken into custody at the scene.

There are still questions about the moments leading up to the shooting and the sequence of 911 calls received that night. If anyone has information about what happened at Sonora Lane on January 15, 2015, please come forward.