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The latest shift in the Las Vegas timeline raises questions

After Las Vegas sheriff Joseph Lombardo said Monday that the Mandalay Bay security guard was shot before gunman Stephen Paddock began shooting into the Harvest Festival, undersheriff Kevin McMahill tried Tuesday to clarify the shift in the timeline. But he only raised more questions when he said a maintenance worker was also on the 32nd floor when shots rang out. Jamie Yuccas reports.
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