In the grand scheme of Christianity, The Ten Commandments are pointless.
If a serial killer can be allowed into Heaven simply because he repented right before his life came to an end, then Thou Shalt Not Kill doesn't mean sh*t as a commandment.
If every bad thing that we have ever done is wiped off of our records simply because we ask God for forgiveness, then commanding people not to kill or lie or steal is useless.
"Don't kill people...but if you do, just say you are sorry and you can still come to Heaven and chill."
How does that make any sense?