If you read the wikipedia article, you'd realize that aiding and abetting only holds sway when you have knowledge of the crime. If you're not involved and don'

If you read the wikipedia article, you'd realize that aiding and abetting only holds sway when you have knowledge of the crime. If you're not involved and don't know anything, how are you aiding anything? Just the statement "I saw a guy running" could land you in court.