2. He had to die because Desmond said he would and bad shit would happen if he (Desmond) continued saving him (Charlie). Oh and Charlie thought his death meant Claire would live. Still kinda confused about the helicopter stuff cuz she's in TwinPeaksVille now....
Plus, if he didn't lock it from the inside Desmond would have just opened it to try to see/talk to Penny, and then they both would have died.
I had that thought too, alslans. Of course if he just saw a woman getting on a copter with Aaron, he would assume it was Claire.
















