Sam DeMarco

RIchard Drew / AP

On today's program: A free dental clinic at PPG Paints Arena will serve more than 1,000 patients for free; how Sam DeMarco hopes to chart his course as Allegheny County GOP chair; get to know the first African-American woman to graduate from Pitt's engineering program; a peek into the future for autonomous vehicles in Pittsburgh; and what immigrants and allies can do following reports of ICE activity in Pittsburgh.

Allegheny County Council

Allegheny County councilor Sam DeMarco, the top Republican elected official in Allegheny County, is the county party's new chair after a Saturday morning vote in a Greentree hotel. He beat his rival, committee treasurer Bronco Brnardic, 213 to 157.

An-Li Herring / 90.5 WESA

Amid mounting pressure to increase oversight of municipal police forces, the Allegheny County Council took an initial step in creating a county-wide civilian police review board. On Tuesday, it voted 8-6 to hold up to four public meetings on how to form such a board.