Law enforcement officials in Placer County have announced that they are investigating the Sunday shooting deaths of a federal prosecutor and his wife as a murder-suicide.

A spokesperson for the Placer County Sheriff’s office indicated Monday that investigators believe that Timothy Delgado, a 43-year old assistant U.S. attorney in the Eastern District of California, shot and killed his wife Tamara, 45, before killing himself. A spokesperson for the office told the Associated Press that Tamara Delgado’s mother called the office asking that they check on the couple, bringing officers to their home in Granite Bay, a Sacramento suburb about 20 miles Northeast of the city. The sheriff’s office closed the area to traffic Sunday to conduct a homicide investigation.