(CNN) The school shooting in Florida has sparked a renewed call for lawmakers to take action, and some of the loudest voices demanding change are not even old enough to vote.

The tragic event, which occurred Wednesday at Marjory Stoneman Douglas High School in Parkland, is one of the deadliest mass shootings in modern history . Seventeen people -- 14 students and three teachers -- were killed and many more injured.

Now, led by the students, this South Florida community is demanding answers on how this could have occurred and are asking what steps will federal and state authorities take to prevent this from happening again.

To help facilitate the discussion, CNN has announced it will hold a nationally televised town hall with the victims' classmates, parents and community members.

"Stand Up: The Students of Stoneman Douglas Demand Action" will air live at 9 p.m., ET, on Wednesday, February 21 at the BB&T Center.

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