Injustice

Where is the real justice when a person kills another person & gets to walk away without even a slap on the wrist? Are we so insignificant that shit like this can still take place  & nothing is done about it? As a human race where do we find fault in ourselves to take credit for our wrong doing especially when murder is involved.http://www.wbrz.com/player/?video_id=12093&zone=58&categories=58