Pakistani police said they widened their manhunt Monday, searching for two unidentified assailants who shot and killed a Christian priest and wounded another the previous day in the country’s northwest. Father William Siraj, 75, was killed while on his way home after attending Sunday Mass in the city of Peshawar, the capital of northwestern Khyber Pakhtunkhwa province that borders Afghanistan. One of his traveling companions, Father Naeem Patrick, was wounded while a third priest was unharmed in the attack. The attackers fled the scene. No group has so far claimed responsibility for the killin…