I've read this site many times but never wrote in until now. I think the big clue mentioned in interviews is that bag or curtain above sink that Lisbon sees right before she's attacked. I can clearly make out a letter 'G' on it. Not sure what it is but I think it's the clue which will come back later.

As for suspects, I think thry're all RJ's friends except the one who is the real killer of Jane's family. That's why Partidge said Tyger Tyger and that's how RJ knows the list, because they're all connected. Either way, the bag or curtain above sink I think is a huge clue which will come back into show. Just my two cents.


Not sure about Haffner just needed a suspect to write in my observation.