Spoiler comments and questions
If she wanted to help the young cop because it looked like he was about to lose his job...
-- why did she approach the young cop's PARTNER first??
Also, couldn't the writers have contrived a better way for the cop to figure out who was behind all the killings than the friggin' NANNY CAM??
That didn't involve any deductive prowess. It was just like, "Bam! Here's video footage! You're welcome!"
Lame.