“This is a horrific crime, and these crimes are not going to be tolerated by me and by this office,” U.S. Attorney for D.C. Jeanine Pirro said in a press briefing Thursday.

Two staff members at the Israeli Embassy in Washington, DC, were killed Wednesday night near the Capital Jewish Museum, Secretary of Homeland Security Kristi Noem said.

Washington Metropolitan Police have identified the suspect as a 30-year-old from Chicago.