Observant Jews generally do not use their phones on Yom Kippur, the holiest day of the Jewish year. “It’s a crazy moment,” said Osher Luftag, 18, who lives near the synagogue. “Nothing like this has ever happened here.”The attack sowed shock and terror. Maureen Harding, a resident of the area of 58 of her 78 years, said the neighborhood was generally peaceful. Residents walked to other synagogues in the area so they could say afternoon prayers.