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An investigative TV show in Italy has challenged the alibi of Amanda Knox.

Quatro Grado released surveillance video apparently showing a woman resembling Knox. You can see the woman walking through a parking lot near the home Knox shared with Meredith Kercher. The footage was reportedly recorded the night of Kercher's murder.

Knox has maintained she spent the evening at the home of her then-boyfriend Raffaele Sollecito.

KING 5's Linda Byron has been covering the Amanda Knox case from the very beginning and weighs in on the video.

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