Three masked men opened fire inside the Bernard Grocery Store at 27th and Pierce.
Four people were struck. One of them, the 46-year-old owner Miguel Almonte, was killed.
He was a father of 6, and had just returned from his native Dominican Republic.
Police say the gunmen used a military-style assault rifle and shotgun.
Anyone with information is asked to call the Citizens Crime Commission at 215-546-TIPS.
