Political signs lined the windows of the Chicago home of Elias Rodriguez, the man officials believe killed two Israeli embassy aides at a Jewish event in Washington, D.C., on Wednesday. One declared that the apartment was a “Proud Union Home” while another read “Justice for Wadea,

The two people shot and killed outside a Jewish museum in Washington were young staffers at the Israeli Embassy who were soon to be engaged.

Justice Department officials are considering additional charges against Elias Rodriguez, the Chicago man accused of killing two Israeli Embassy staffers on Wednesday evening in Washington, D.C., Fox N...