And his death came about in the most frustrating, mean way! Seriously, Shonda Rhimes?! Seriously?!
After Derek witnessed a car crash, he jumped in hero mode, saving every single person in the wreck. And when fire trucks and ambulances came to take everyone to the hospital, Derek got in his car a little more exhausted but still totally fine, and started to drive away. But, in mistake number one, his phone rang, he reached down to answer it...and his car ended up getting T-boned by a random truck that came out of nowhere!
That's right, this was car crash number two, for those of you keeping track. Not. Cool.
Derek was rushed to the nearest hospital, which was not Grey Sloan Memorial, and that was mistake number two. Random doctors rushed to treat him, and believed that he wasn't stable enough to get a head CT, instead taking him straight to the OR. That, my fellow Grey's fans, was mistake number three, and the biggest mistake of them all.
Not only was Derek stable enough for a CT, he needed one to show the doctors his biggest injury was in his brain.