By Karen Heller
The Philadelphia Inquirer
PHILADELPHIA — Officer Moses Walker Jr. was a 19-year veteran on the Philadelphia police force, a deacon in his church, an optimist who saw good in many people during his cruelly short life.
Dressed in civilian clothes early one Saturday morning after finishing his shift, Walker, 40, was slain last month during an armed robbery gone terribly wrong. He is the third cop killed this year, and the only officer to be murdered by gunfire.
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