PHILADELPHIA (CBS) –Tuesday, a former Philadelphia police officer will be formally charged in the deadly shooting of 12-year-old Thomas Siderio.
Mendoza is accused of shooting and killing Siderio in South Philadelphia last March.
The district attorney said evidence shows that Mendoza knew the boy was unarmed when he shot him in the back.
Mendoza was working undercover in the area at the time of the shooting.
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