I saw a story on a local news channel recently about a missing teenage girl,she had run away apparently.

To get to the point the reporter was talking to a family friend who had "recovered" the contents of AOL chats she had with "middle-aged men" that he described as disgusting.

My point being,how did he do this?
My experience is with Yahoo and I have found that it keeps a log of all the people you chat with and at what time/date the chat was,also it keeps a copy of all files you transfer over it.
But keeping a log of all content of chats?

Unless the parents had a keystroke logger or some nanny-ware I don't see how this was done.