Way down upon the Mississippi, two tugboat captains who had been friends for years, would always cry "Aye!" and blow their whistles whenever they passed each other. One day a new crewman asked his boat's mate, "Why do they do that?" The mate looked surprised and replied, "You mean you don't read your bible? Surely you've heard of ... an aye for an aye and a toot for a toot?"
(Everybody groan here). Yes, I know how bad that story was, but I laughed anyway. Hope you can, too.
You see the real problem with wanting to use that "eye for an eye" passage to justify getting even happens to be that this is exactly what Jesus tells us not to do. Jesus' teaching in the Sermon on the Mount in Matthew 5:38-39 says, "You have heard that it was said, 'Eye for eye, and tooth for tooth.' But I tell you, 'Do not resist an evil person. If someone strikes you on the right cheek, turn to him the other also.'"
The apostle Paul reminds us in Romans 14:10, "We shall all stand before the judgment seat of Christ." Very simply, though men may sometimes escape justice and judgment here on earth, someday they will meet the judge, which gives out true justice, there is no escape.
My prayer is that you will have the faith in God to realize that no matter what happens, he holds the universe in his hands. He will bring judgment to all of those who deserve it. He is the only one who can bring about ultimate justice, our job is to turn the other cheek.