ROCHESTER, N.Y. — The Panther Graphics printing plant sits along a row of red brick buildings and empty parking lots on the edge of a circular highway that separates this city’s downtown from a largely Black neighborhood to the north. Nearby, there is a warehouse, a Baptist Church and a billboard that warns “A Shot from A Gun Can’t Be Undone,” a reference to Rochester’s soaring murder rate.Tony Jackson, the owner of Panther Graphics, grew up here, the oldest of six children. His mother died when he was 13 and his father served time in Attica, the …