FILE - This photo taken Nov. 14, 2011, shows the rain-soaked handle of a shopping cart outside the Wal-Mart store in Mayfield Hts. Wal-Mart has pulled a batch of powdered infant formula from more than 3,000 of its stores nationwide after a newborn Missouri boy who was given the formula became gravely ill with a suspected bacterial infection and died after being taken off life support, the retailer said Wednesday, Dec. 21, 2011. (AP Photo/Amy Sancetta, File)
April 7, 2012 10:02:13 AM PDT
PHOENIX - April 7, 2012 --
Phoenix police say that a worker at a Walmart store has been shot and killed during a robbery attempt.