No, your question was, "What reason is there to think that any particular defendant was guilty as charged?" Guilt is determined by law.
Now, was there reason to believe they did the crime? Personally, I don't know. But those closest to the case, those that heard all of the evidence presented by the prosecution, those who were privy to the testimony given under cross-examination by the defense, decided unanimously that they were guilty. Of the 46 arrests, only 8 went to trial.
No, your question was, "What reason is there to think that any particular defendant was guilty as charged?" Guilt is determined by law.
The dictionary gives your definition as secondary to mine:
guilt·y adj.
1. Responsible for or chargeable with a reprehensible act; deserving of blame; culpable: guilty of cheating; the guilty party.
2. Law. Adjudged to have committed a crime.
Now, was there reason to believe they did the crime? Personally, I don't know. But those closest to the case[...] decided unanimously that they were guilty.
Your previous reference to the OJ jury comes to mind here.