I am glad the show is flirting with the idea of a killer spanning multiple episodes. They did this last season where they introduced several plots involving Greek coin smugglers, a girl's crush on Mac and the flash drive case. My only wish is that they used the technique on a more vicious character. Hollis is barely one step above Forrest Gump in terms of intelligence. My only hope for turning the long term plot around is to see Hollis want revenge on the team and plan on targetting them.