She ended by singing happy birthday to one of her fallen classmates, Nicholas Dworet, who would have turned 18 on Saturday.
'We're trying to get people to stop dying, ' Gonzalez said.
"I would like to sing altogether 'Happy Birthday'".
The Rev. Martin Luther King Jr.'s 9-year-old granddaughter Yolanda Renee King gave a rousing speech at the Washington rally, saying, "I have a dream that enough is enough, that this should be a gun-free world".
"Nick's death is a reminder that we are connected to the larger world, and when tragedy hits in places around the world, it oftentimes affects us at home", Robert L. Manuel, University of Indianapolis president, said soon after the shooting last month.
And there were signs.
Have you noticed that the solutions to school shooting being proposed by the young people who will be marching this weekend are maximalist ones that impinge upon other people's freedoms and force other people to change their behavior rather than more narrowly tailored changes that impinge on their own freedoms and cause them to change their own behavior? "You have inspired all of us by your actions and poise".
"I think it was pretty special to have something like that happen before I play, " said the 20th-ranked Kyrgios, who took just 49 minutes to breeze by Dusan Lajovic of Serbia, 6-4, 6-1. The current administration called the students at the rally "courageous". The NRA, not so much.
RIP 'Chicago Fire' Star DuShon Monique Brown Dead At 49
Brown was best known for her recurring role as Connie, Assistant to Chief Boden ( Eamonn Walker ), on NBC's Chicago Fire . Chicago Fire producer Dick Wolf released a statement confirming Brown's death after reports began to circulate.
For Northport High School senior Teva Yaari, this wasn't her first march.
"Keeping our children safe is a top priority of the president's", said Walters, noting that on Friday the Justice Department proposed rule changes that would effectively ban "bump stock" devices that let semi-automatic weapons fire like a machine gun. She said she was heartened by the number of protesters supporting their cause.
People of all ages were out and about at the protests.
In case Minnesota's lawmakers don't get it, there's an nearly 10-foot high #ENOUGH in white letters on the grounds of the statehouse. Discussions were at times tense, but one of the 2A supporters said he was in Washington for discourse. "He was crying, 'What if I'm in the hall, what if I can't get to my brother?'"
While true that these students are getting a national spotlight because their friends were murdered, it's an incredibly callous and stupid thing to say.
"He talked about taking guns away from people who have been seen as a threat", Wallace recalled. Aaron Feis would never call Keira, Miss Sunshine. Dozens gathered in the square, holding homemade signs bearing slogans like "Enough is Enough", "Every shot has a effect", "Wanted: New leaders" and "Prove that you care more about your kids than your guns".
In Washington, rallygoers also saw the West family - Kanye, Kim and North - and the Clooneys - Amal and George - among the crowd.
There were also rallies in Brisbane, Australia; Copenhagen, Denmark; Madrid; Paris and Rome.