No. Life is life.....it's meant to be lived moving forward, not dwelling in the past.
Like Sincerity said, I could think of quite a few people I would wish to have back but I would never take an unknown person's life for it. I couldn't do that knowing some innocent person was gone because of my selfishness. Sorry.
No. Life is life.....it's meant to be lived moving forward, not dwelling in the past.