Today, Allegheny County District Attorney Stephen Zappala released the first television advertisement in his campaign for Pennsylvania attorney general.

Zappala's ad begins with video footage from the traffic stop of Sandra Bland, a black woman who was found hanged in a Waller County, Texas jail after being taken into custody after a routine traffic stop in July 2015. The next clip is from the April 2015 shooting of Walter Scott, an unarmed black man who was shot in the back while fleeing from police in North Charleston South Carolina. The third clip is from elevator footage of Janay Palmer, after she was beaten by professional football player Ray Rice in Atlantic City.

The clips are meant to show how similar tragedies have been avoided in Allegheny County as a result of Zappala's efforts "fighting domestic violence and racial profiling."

"Stephen Zappala has a story to tell that no one else in this election can match. Because of his leadership and unbending commitment to fairness and equal justice, Pittsburgh has not experienced the kinds of community upheaval that resulted in other cities from Chicago to Ferguson, Missouri to Miami Gardens, Florida," Zappala's campaign manager Marty Marks said in a statement. 

Zappala will face Montgomery County Commissioner Josh Shapiro and Northampton District Attorney John Morganelli in the April 26 primary. In February, Pa. Attorney General Kathleen Kane announced she would not be running.