WASHINGTON (CNN) — A rifle-wielding white supremacist entered Washington’s Holocaust museum on Wednesday afternoon, fatally shooting a security guard before being wounded himself by return fire from other guards, authorities said.

Stephen Tyrone Johns was shot and killed while working at the U.S. Holocaust Memorial Museum on Wednesday.

Stephen Tyrone Johns, a six-year veteran of the museum’s security staff, later “died heroically in the line of duty,” said Sara Bloomfield, museum director. Continue reading