This is frustrating:
1. Hussein, Bin Laden, Arafat, Smith, Kevorkian--I can accept that these people are muderers.
2. Peterson, Condit, Simpson--you are being arrogant. You do not have all the facts. All you hear is what the news media is telling you. As somebody who knows a bit about the news media, it sells a lot more papers and ratings to paint a picture of somebody who is guilty than to present all the facts available.
What gives you the authority to decide of Peterson or Condit are murderers? Is it a gut feeling? Are you, somehow, privy to all the evidence in both cases? Did a little bird tell you?
As far as O.J. Simpson, I really don't know how you could say either way. There was so much mismanagement by the prosecution that none of the evidence could have been convincing (see bloody gloves, see Mark Furhman).
The judicial system is far from prefect. however, you certainly don't have the resources to fix it, nor the information to properly criticise it. At least, you aren't presenting any information.