Here's the short story:
a player was very reckless and the crits have basically started feeding into each other. He is now bleeding out and blinded among 3 other more minor issues. I haven't ever had to kill off a player before, how should I go about it?
Long story:
Ok, so I have a player who totally abused the min/max potential of a droid and ended up taking 4 brawn, 4 agility, and 1 in everything else. This made him think, in the first session after character creation, that he was a tank who could charge an acklay that existed simply as something they would have to avoid. Even after significantly weakening the acklay on the spot by halving its soak and decreasing its brawn he still ended up with something like 2 crits and falling unconscious.
He then decided to try to climb a ruinous spire (they're on Geonosis looking for Clone Wars artifacts) by punching the walls to make holes (this is despite another character having and using climbing gear), succeeding in a formidable difficulty athletics check, but I had upgraded the difficulty and lo and behold it lands on despair. The walls and ceiling start crumbling around them, giving them precious little time to search for the artifacts they came for. I basically set this situation on a timer, where they could use coordination checks to avoid falling debris, but each time the difficulty and damage received from failing increased by 1. The droid gets hit in the head by debris and falls unconscious, taking another crit. Another player slaps a repair patch on him and they escape as the crumbling spire.
This commotion attracts the attention of the Empire who have the planet essentially on lockdown because of the whole death star building site thing and the sterilization of the planet (new canon stuff). The players manage to steal the Imperial Shuttle that landed troops to search for them, park it next to their ship, but instead of escaping they start looting the Imperial Shuttle. Granted, I tempted them with stuff to take, but also made it clear that those soldiers saw them and were close by. A battle with some unfortunate rolls began and ended fairly quickly and our heroes are now unconscious prisoners of the Empire. Also important: a really bad crit roll for the droid player, and he is now bleeding out.
Cut to them in an imperial prison on board a star destroyer. They escape, but the bleeding out stuff does a number on the droid, and he ends up blinded too. I even included a mechanic that they ran into who could have fairly easily been coerced/deceived/charmed into fixing a crit, but instead they kill the poor little ugnaught on the spot.
So that's where I am with this, they escaped into a maintenance shaft, away from immediate harm but that droid is a mess. On one hand I want him to make a new character because the min/maxing doesn't make much sense (for instance, why is a hulking combat droid devoid of any willpower that could give him coercion/vigilance/discipline). On the other hand, this player seems pretty attached to this droid for some reason and I don't very much like putting him through this. The thing is that it is really difficult to accidentally die in this system, and he has managed that through thorough recklessness and poor decision making.
So I guess I'm asking for people's thoughts on killing off characters and perhaps how to do it gracefully and diplomatically if possible.