No one is past redemption if even Darth Vader can repents in the end so can anyone else. Yes it’s just a story but many stories resonate in truth.
Repentance is about our deeds or our life. It’s about Jesus life and his sacrifice in our stead. We simply have to accept his forgiveness and invite him into our heart.
So it doesn’t matter if we are on our death bed or have finally decided to give our life to God. He is always there waiting for you to choose him.