The grieving families of some of Uvalde’s victims are in Washington DC this week to campaign to end gun violence.
After a day of lobbying lawmakers to ban assault rifles like the one used to kill loved ones, they were told a the video was leaked; CCTV from the hallways inside Robb Elementary School on the day their lives were destroyed.
The video is as creepy as it is troubling, and shows 18-year-old gunman Salvador Ramos casually walking to the classroom where he killed 19 children and two teachers.
It confirms the heartbreaking and irritating timeline they suspected, showing police officers waited 77 minutes before confronting and killing the killer.
Kimberly and Felix Rubio, whose 10-year-old daughter Lexi was killed, were forced to relive their darkest day.
“If one person just did something differently, we would have a different result,” says Kimberly.
“Hearing shots fired in his class, there are no words. To the world that saw him, they were watching a deranged person shoot in a dark classroom. But for us, we could see him and hear him kill my son.”
CCTV shows dozens of police officers gathered outside the courtroom. They carry guns, wear body armor and even ballistic shields.
Their training makes it clear that they should deal with the threat immediately, as there are known to be still people alive within the classroom.
But they wait, as an agent even applies hand sanitizer an hour after the rampage begins.
Kimberly Rubio says she debunks the gun lobby’s idea often that “good guys with guns” are the best way to fight mass shootings.
“The video is proof that it’s not true,” he says.
“That day we had police officers in charge of protecting our children, and they failed because they were afraid to go in because this man had an assault weapon.
“If the armed and trained police officers don’t want to confront this person who had an assault weapon, who does it? Nobody. They have to be banned.”
Lexi’s parents say they are honoring their daughter’s memory and channeling their pain by lobbying lawmakers.
Their purpose is to encourage the passing of laws restricting the possession of weapons in the knowledge that the daughter’s killer has obtained her weapons legally. But sometimes their pain is overwhelming.
“I put her in that class and kept her in that class,” Kimberly says.
“I couldn’t bring her home after the awards ceremony [held on the morning of the shooting]. She now she is dead. And like her mother, she is up to me. I don’t know how to live with it. “
The what if’s are almost too much to bear. But really the only question that matters is what it will take for America to decide enough is enough.