Mrs. Hillman, the wife of billionaire Henry Hillman, was once described as "the Grand Duchess of the Pennsylvania Republican Party."
Cousins Seth C. Byler, 16, and John A. Mast, 15, died when they fell into a hole while wading in Little Neshannock Creek in New Wilmington.
Among the changes: Commanders developed a three-level formal protocol for responding to violence or threats of violence in communities.
Daniel Rehll, 25, is accused of killing Maria Bruno, 25, at her home July 19.
Desmond Young, 22, of Homewood was among three men charged with killing Omar Islam of Perry South while he waited for a bus in October 2013.
The driver and passenger suffered severe burns in the Second Avenue crash.
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Pennsylvania has the fourth-highest total of veterans in the nation, and Allegheny County has the largest total in the state.
A federal appeals court upheld a ruling that CMU patents were infringed by Marvell Technology Group but reduced the damages.