OAKLAND -- Anthony Sheppard stood in disbelief Thursday outside
the cellular phone store where its well-known and highly
respected owner was gunned down the night before during a
robbery.  "I heard about it last night and I didn't want to
believe it was him," said Sheppard, 30, as he stood near a small
crowd outside the store that had been a fixture in East Oakland
since 1996. "I was hoping it wasn't him and I got here and it
was. He was a good man. Why they do him like that?"  Wilbur
Bartley, 50, was found slain about 7:22 p.m. Wednesday inside
Marcus Cellular, 9230 International Blvd., a Metro PCS outlet
and Direct TV dealership.  Police said Bartley had named the
business after his son and many of his customers and residents
who knew him as "Mr. Marcus" were saddened and stunned by his
death.  Bartley, who lived a few blocks away, apparently was in
the process of closing for the evening when he was confronted by
someone who robbed and shot him, police said.  Police would not
disclose what was taken.  The k