LOS ANGELES: The decorated Green Beret who died by suicide in a blazing Tesla Cybertruck outside a Trump hotel in Las Vegas was suffering from post-traumatic stress, investigators said on Friday (Dec 3), saying they had found no links to "terrorist" groups. Matthew Livelsberger, 37, a member of the elite US special forces, shot himself on New Year's Day in the rented Tesla vehicle filled with fuel containers and fireworks, which exploded. Seven people nearby in the valet area of the glass-