Such incredibly sad news. The physicality of that performance went hand in hand with JEJ's voice over. The look of anguish,
even with the helmet on, when Palpatine is electrocuting Luke on the 2nd Death Star is so powerfull.
My daughter and I bumped into him the night before Celebration Europe - he took the time to talk with us, answered lots of questions and posed for pictures.
Just a lovely bloke, glad we got the chance to meet him.