Oh yeah. Gibbs is still suspicious and takes Joe into interrogation.

"You broke him, boss. He's in there stuttering and shaking and telling you about the time he stole a candybar when he was twelve. He just doesn't know anything about this."

"It just doesn't feel right. He knows something."

"Well, right or not, he handed in his resignation. You scared him off."

"Maybe that's what he wanted. A reason to leave suddenly."

"Jethro! Unless you can tie him to this right now, you have to stop harassing him."