Yes, Nick did turn back and tried to salvage the error but forgot the speed brakes in the deployed position. We changed how we monitored speed brakes after that. The FO flying normally flew to Europe so wasn't familiar with Cali. The gpws warning with speed brakes extended helped causing them to hit the hill about 500 ft from the top. My neighbor went there as an EMT to recover the bodies. This shows how important situational awareness is in the cockpit.