Pittsburgh Roman Catholic Bishop David Zubik is calling for tighter restrictions on gun purchases, with improved background checks and with limits on high-capacity weapons, such as the one used in the June 12th mass murder of 49 people at Orlando, Florida’s Pulse nightclub. Bishop Zubik – who has extensive ties to Beaver County – also called for improved mental-health treatment. His statement alluded not only to the Orlando victims but also to the five adults and an unborn child killed by gunfire at a Wilkinsburg backyard cookout in March and to the murders of nine at a Charleston church last year. Zubik grew up in Ambridge, where he attended St. Veronica High School.  After his ordination, he was named vice principal of Quigley Catholic High School in Baden and chaplain to the Sisters of St. Joseph Motherhouse and to students at Mount Gallitzin Academy.