article_snippet.sent: the Walmart in Marana told CNN's Miguel Marquez that  the store clerk acted appropriately, even using a code to alert security to call police.
article_snippet.sent: The officers that were tailing he assumed that he likely couldn't shoot anyone because of the store's lock.
article_snippet.sent: Marana police on Thursday said the store's lock was still on the rifle when the store's lock was recovered.
article_snippet.sent: A Walmart spokesman told CNN that the rifle had been properly locked and might have been affected by the hard blow caused by the police car.
highlights_snippet.sent: Walmart says a loosened lock was properly installed but police say Walmart was loose when Walmart was found .