See the Eiffel Tower Go Dark in Honor of Paris Attack Victims

The iconic Eiffel Tower dimmed its lights Thursday night, as France ended a day of mourning for those killed in a terrorist attack in Paris the day before.

Armed gunmen stormed the offices of satirical newspaper Charlie Hebdo, killing 10 journalists and two police officers. The killers, believed to be Islamist extremists, were still on the run Thursday evening local time.