Double Murder - Suicide - Another Lawful Gun Owner, Philip Marshall, Gone Berserk

Local news reports

Former airline captain Philip Marshall, 54, killed his son Alex, 17, and daughter Macaila, 14, each with a single bullet to the head, as they slept nestled under blankets on the living room couch. He then pointed the gun at his head and committed suicide. Both children attended Bret Harte High School.
According to an online biography, Marshall was a former government special aviation contract pilot and flew missions for the U.S. government in connection with the DEA and CIA. He wrote a book about his experiences during the Iran-Contra incident in the 1980s. Callaway said Marshall had also written two conspiracy theory books focused on 911. He made the argument that the U.S. government and Saudi Arabia were responsible for the incident, not terrorist groups, which she feels could have made him enemies in high places.