I felt the same way about the puppies... I just got nauseous by simply watching him pet those... The kid was really creepy this week, a psychopath all the way, great acting on the young actor part, IMHO. it saves the episode for me, I hate those when we know the identity of the unsubs right from the beginning. In a way the episode looses some of the edge for me...

About the stalkerUNSUB, I hope it would be someone from their past, maybe someone they helped, some victim too traumatized by the tragedy the team was (objectively speaking) unable to prevent? ... just got a really crazy idea this instant while typing the comment, so bear with me: say it's ...Seaver? it would be easy for someone who works at the FBI to get all the information on the team - not only the older cases but the newest ones.