Six minutes and 20 seconds: it took only about the length of a TV news mini-segment for 19-year-old to murder 17 people with a semiautomatic rifle at Marjory Stoneman Douglas High School in Parkland, Florida last month.

Today, Douglas senior and activist Emma Gonzalez addressed a crowd of hundreds of thousands of people sheā€™d helped to gather with her classmates in Washington, D.C. in just weeks (estimates currently have the crowd size at 800,000). Gonzalez named the victims: Alyssa Alhadeff, Martin Duque Anguiano, Nicholas Dworet, Jamie Guttenberg, Luke Hoyer, Cara Loughran, Gina Montalto, Joaquin Oliver, Alaina Petty, Meadow Pollack, Helena Ramsay, Alex Schachter, Carmen Schentrup, and Peter Wang; teacher Scott Beigel; and coaches Aaron Feis and Chris Hixon.

Then she stood in silence for the remainder of her six minutes and 20 seconds onstage.

Itā€™s been only about five weeks, but it feels like an eternity. As of Friday, the Gun Violence Archive has recorded 73 teens shot to death since Parkland, HuffPost reports.