Minutes earlier, Max Schachter read a poem titled "Life Is Like a Rollercoaster" by his son, Alex, who was killed in the shooting.
>> Watch the reading here
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The tributes followed a heated town hall moderated by CNN's Jake Tapper and featuring lawmakers from Florida, including Democratic Rep. Ted Deutch, Democratic Sen. Bill Nelson and Republican Sen. Marco Rubio. National Rifle Association spokeswoman Dana Loesch also participated in the event.
Victims of the Florida High School Mass Shooting