A gunman blocked the back door to a Binghamton, N.Y., immigration office before opening fire on a citizenship class, killing 13 people and seriously wounding four others before taking his own life, according to local officials.
Investigators said they had yet to establish a motive for the massacre, which was at least the fifth deadly mass shooting in the U.S. in the past month alone.
The attack came just after 10 a.m. at the American Civic Association, an organization that helps immigrants settle in this country. Police Chief Joseph Zikuski said the gunman parked his car against the back door, “making sure nobody could escape,” then stormed through the front, shooting two receptionists, apparently without a word.
The killer then entered a room just off the reception area and fired on a citizenship class.
“The people were trying to better themselves, trying to become citizens,” the police chief said.