A 31-year-old Illinois man has been charged with two counts of murder after opening fire 21 times on a young couple exiting an event at the Capital Jewish Museum in Washington, D.C., late Wednesday, according to a criminal complaint, shooting the victims in the back and then firing again at the woman as she tried to crawl away.

Two staff members of the Israeli Embassy in Washington — a young couple on the verge of becoming engaged — were fatally shot Wednesday evening while leaving an event at a Jewish museum, and the suspect yelled,