http://www.lasvegassun.com/news/2010/jul/12/metro-ids-officers-fatal-shooting-summerlin-costco/
Authorities said a Costco employee called 911 to report a man acting erratically in the store, damaging merchandise and carrying a pistol in his waistband. An officer approached the man, identified as Scott, then noticed the pistol and gave him verbal commands to lay on the ground, police said.
After Scott pointed the pistol at an officer, the officers fired at him, striking him multiple times, police said. He died at University Medical Center a short time later.
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Doesn't seem to jive with any other reports I've seen...