5 Burning Questions From This Week's Blue Bloods

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What does the new serial killer have in store for Danny?

We've see Danny take down plenty of serial killers over the years, but his new suspect is next level! Not only did he kidnap, torture, and kill young women, he beat Danny with a hammer and evaded arrest. This dark figure doesn't seem to be stopping—he even called Danny to taunt him after getting away. We're dying to know how this will play out!