Former Philly cop who shot and killed 12-year-old T.J. Siderio pleads guilty to third-degree murder
Edsaul Mendoza, the former Philadelphia police officer who shot and killed 12-year-old Thomas “T.J.” Siderio in South Philadelphia more than two years ago, pleaded guilty to third-degree murder on Friday — becoming the first city officer in recent history to face conviction for murder related to a fatal on-duty shooting.