One thing is certain, whoever the murderer is, he has not yet faced justice for that horrible crime. The important word there is yet, because although there were no actual witnesses to the murders who testified at the criminal or civil trials, there is coming another day of judgment when those who saw it all will testify. The murderer, whoever he turns out to be, will then be identified with absolute certainty. There is no escape from justice for anyone.
The Victims Themselves
Nicole Brown Simpson and Ronald Goldman, as with everyone else who has died through the ages, are at this moment in a deep, peaceful sleep (see What Happens When You Die?) from which they will one day be resurrected to life. What better human eyewitnesses could there be than the victims themselves?
"For this we declare to you by the word of The Lord, that we who are alive, who are left until the coming of The Lord, shall not precede those who have fallen asleep.For The Lord Himself will descend from heaven with a cry of command, with the archangel's call, and with the sound of the trumpet of God. And the dead in Christ will rise first; then we who are alive, who are left, shall be caught up together with them in the clouds to meet the Lord in the air." (1 Thessalonians 4:15-17 RSV).
"The rest of the dead did not come to life until the thousand years were ended." (Revelation 20:5 RSV)
God Knows Who Did It
But what if the murderer was wearing a disguise, or a mask of some sort, so that the victims couldn't see who it was? No problem. Masks and disguises don't work with God.
"For the word of God is living and active, sharper than any two-edged sword, piercing to the division of soul and spirit, of joints and marrow, and discerning the thoughts and intentions of the heart. And before Him no creature is hidden, but all are open and laid bare to the eyes of Him with whom we have to do." (Hebrews 4:12-13 RSV)
No One Gets Away With Anything
Humans can sometimes seemingly get away with deceiving other humans, at least for a while, but God absolutely cannot be fooled at all. It doesn't work with Him. Sooner or later, everyone gets what's coming to them, for good or bad.
Fact Finder: What sort of unrepentant people are going to be cast into the lake of fire?