( Montgomery County Police)

This post has been updated.

As the public followed the story of Jayna Murray’s murder at the hands of her Lululemon Athletica coworker Brittany Norwood, it was hard to determine what part of the case was most shocking: Norwood’s ability to commit a brutal crime, or her sheer ability to lie.

Montgomery County detectives eventually poked holes in Norwood’s claim that she was a second beating victim in the March 2011 assault that lead to Murray’s death; in fact, Norwood was later convicted of first-degree murder for striking Murray more than 300 times, leaving her body mutilated. Norwood was sentenced to life in prison with no chance of parole.

But for a brief time, police were fooled. Newly released interview footage of some of the police interviews, and of security footage inside the adjoining Apple store, where employees listened to the beating.

Watch the videos below and after the jump:

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