Erin Hills drops in unexpectedly from the roof, through the building awning.

The call comes into NCIS as Torres is griping about housing prices in D.C.

Wait, didnt McGee and Bishop have this conversation last season?

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Credit: Sonja Flemming/CBS

Is one of the writers grappling with the 2016 housing market right now?

However, Grace suggests that Gibbs investigate Erins fall not as a suicide, but as a murder.

Torres is beyond creeped out, showing that he doesnt haveone-tenth of DiNozzos backbone.

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But the warm beer tips off Gibbs, despite Fornells insistence that the Germans like it that way.

Turns out, a DIY project gone wrong resulted in a loss of electricity for a day or two.

She told Grace she didnt go to the police to keep from implicating anyone.

Devon checked on him every day before work.

Some poking around reveals that Greg and Devon were in a romantic relationship.

The clues fly faster now, and Gibbs gets Devon into interrogation to confirm a few things.

Erins blood shows that she was drugged, which wouldve made her easy to push off the roof.

And Devon admits to knowing that Mr. Odetts kept a gold coin collection worth seven figures in his apartment.

(He was a product of the Great Depression and didnt trust banks.)

Unfortunately, Odetts noticed, confronted Greg, and was killed for his trouble.

But Devon swears she and Greg had nothing to do with her sisters death.