The men, Master Sgt. Matthew Livelsberger and Shamsud-Din Jabbar, who were both killed in the incidents, never served in the same unit, according to unit histories provided by the Army.

A decorated Green Beret who took his life on New Year’s Day and triggered an explosion in a Tesla Cybertruck in Las Vegas was involved in a counseling program designed for special operations troops involved in high-risk operations.

Master Sgt. Matthew Livelsberger, a highly decorated Special Forces soldier, had three recent visits for mental health treatment.