I am truly shocked after seeing what you have just posted. I am terribly sorry for your loss, and I really hope you can get over it as soon as possible. I can't even imagine the situation you must be facing right now, but of course that taking care of your sister must be an absolute priority.
Even if you can't come back to Muda again, it has been a pleasure having you with us, even if it was for a short time. I give you my best wishes.
Hope to see you again sometime in the future.