A Palestinian gunman killed at least seven people and wounded three others in a synagogue on the outskirts of Jerusalem on Friday in an attack that heightened fears of a spiral in violence, a day after the deadliest Israeli raid in the West Bank in years. Police said the gunman arrived at around 8.15 p.m. and opened fire, hitting a number of people before he was killed by police. TV footage showed several victims lying in the road outside the synagogue being tended to by emergency workers.