And with every mass shooting comes a very similar message from President Barack Obama.
"Our thoughts and prayers are not enough," Obama said after last year's shooting at Umpqua Community College in Roseburg, Oregon.
"This just doesn't happen in other countries," he said after the shooting at a Planned Parenthood in Colorado.
Early Sunday morning, Orlando, Florida joined the growing list of U.S. cities left shocked by violent massacres. At least 50 people were killed and 53 more injured in what police are calling the worst mass shooting in modern American history.
In a speech Sunday, Obama called the tragedy “a further reminder of how easy it is for someone to get their hands on a weapon that lets them shoot people in a school, or in a house of worship, or a movie theater, or in a nightclub.”
“We have to decide if this is the kind of country we want to be," he added. "To actively do nothing is a decision as well."
During the first 164 days of 2016, there have been 135 mass shootings in the U.S., according to Gun Violence Archive.
In the hours after the Orlando shooting, Sen. Chris Murphy (D-Conn.) blamed Congress for the slate of mass shootings, saying it has "become complicit in these murders by its total, unconscionable deafening silence."
"This doesn't have to happen," he said in a statement, "but this epidemic will continue without end if Congress continues to sit on its hands and do nothing – again."
BEFORE YOU GO
How to vote
Vote-by-mail ballot request deadline: Varies by state
For the Nov 3 election: States are making it easier for citizens to vote absentee by mail this year due to the coronavirus. Each state has its own rules for mail-in absentee voting. Visit your state election office website to find out if you can vote by mail.Get more informationTrack ballot status
In-person early voting dates: Varies by state
Sometimes circumstances make it hard or impossible for you to vote on Election Day. But your state may let you vote during a designated early voting period. You don't need an excuse to vote early. Visit your state election office website to find out whether they offer early voting.My Election Office
General Election: Nov 3, 2020
Polling hours on Election Day: Varies by state/localityMy Polling Place