A police detective and several other people were killed in connection with an hour-long gun battle in Jersey City on Tuesday, Dec. 10, 2019, authorities said. The dead included two suspects and three bystanders, Jersey City Police Chief Michael Kelly said. Detective Joe Seals was gunned down in a cemetery, Kelly said. Then the violence continued at a kosher supermarket, where police found five people dead. Two of the dead were "the bad guys"—the suspected gunmen, Kelly said, and three were civilians. Mayor Steven Fulop and Public Safety Director James Shea also spoke.