We hope those in power are doing the same.
Wray said the agency has spoken "with victims and families, and deeply regret (sic) the additional pain this causes all those affected by this horrific tragedy".
The FBI said it had looked into it at the time but was unable to identify the person who made the post.
Though the FBI said it had no way to trace the chilling online comment, flagged in September by a tipster in MS, to South Florida, FBI Director Christopher Wray said the tip from the person close to Cruz - delivered in a January 5 phone call to a bureau hotline - was simply never passed along.
The gun that Florida shooter Nikolas Cruz used was bought legally about a year before the shooting. The video's poster, Ben Bennight, who lives in Alabama, called the Federal Bureau of Investigation to warn them.
President Donald Trump has arrived at a Florida hospital to meet medical professionals two days after a deadly shooting at a Broward County high school.
Mr Rubio's comments echoed those of many in the Parkland community this week, who took to airwaves and social media to ask Mr Trump to do something about the staggering number of mass shootings in America. A district court judge ordered Cruz held without bond.
USA indicts 13 Russian nationals for poll meddling
Pinedo's attorney said Friday his client was not aware of the identity or motivations of those buying the accounts. CBS News chief national security analyst Fran Townsend and CBS News justice reporter Paula Reid.
Katie Ledecky wonders whether she is related to Ester Ledecka
This is Vonn's last Olympic games. "I'm going to wait for a little bit, and you're going to switch and (add) some more seconds". Vonn was visibly frustrated after crossing the finish line, and took to Twitter after to share her thoughts on the race.
Pakistani court sentences serial killer to death
Zainab's father, Mohammad Amin, expressed a sigh of relief at the sentencing of his daughter's rapist and killer, reports Geotv. However, they said Imran should be hanged in a public place so that others learn a lesson from his fate.
"When President Trump meets with our nation's governors in just a few short weeks", Pence said, "he will make the safety of our nation's schools our top administration priority". He visited a nearby Subway and McDonald's before police found him walking on a sidewalk in nearby Coral Springs, Fla.
On Friday, Broward County officials announced plans to demolish the freshman building on the school's campus.
President Trump traveled to Florida to visit the victims of the devastating school shooting on Wednesday and dodged questions about stricter gun control laws before heading to his Mar-a-Lago resort. Before their daughter's funeral, Alhadeff's parents made impassioned pleas.
After highlighting how much Trump has received in donations from the NRA, she shouted "shame on you" to every politician that has accepted contributions from the gun lobby.
But for now, someone can get a background check and leave the store with a gun within minutes.
Not always a natural in the role of national comforter, Trump spoke deliberately Thursday, at one point directly addressing children who may feel "lost, alone, confused or even scared".
"Please do something! Do something. We need action, action, action!" "These kids need safety now!"
Schools might not be completely safe, but they remain the safest place a child will be during the course of his or her day. How do they get through security?