Martin Luther King Jr.'s granddaughter delivers emotional speech at 'March for our Lives' in D.C.

WASHINGTON D.C. (KGO) -- Martin Luther King Junior's granddaughter Yolanda Renee King delivered a powerful message to the crowd in D.C. during the 'March for our Lives' event.

"I have a dream that enough is enough and that this should be a gun-free world, period," King said.

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The rally drew a massive crowd to Washington to call on lawmakers to address gun laws and school safety.

PHOTOS: Demonstrators call for action with their signs

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See the signs demonstrators are carrying at March for Our Lives events around the country.

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