Photo: Joe Raedle / Getty Images

"Just before dismissal at Marjory Stoneman Douglas High School in Parkland, thousands of students puzzled at the sound of an unexpected fire alarm were launched into a panic," the Miami Herald reports.

How it started: "Cruz pulled a fire alarm and then, wearing a gas mask, began tossing smoke bombs and shooting people as they ran through the haze," U.S. Sen. Bill Nelson told reporters.

  • "Nikolas Cruz, 19, walked the halls of the high school wielding an AR-15 and multiple magazines."
  • "Cruz ... shot his way onto campus. He gunned down a dozen people inside buildings on the school’s sprawling campus, two more on the grounds, and one more on Pine Island Road as he fled. Two more died at the hospital."

"As the gunman walked through the building, he shot into classrooms where students were crouched in corners and hiding in closets," per the N.Y. Times:

  • "Students were leaving the third floor when they heard gunshots. ... They ran back to their classroom, and their teacher was shot and killed as he tried to lock the door."

Go deeper: How these scenes like this have become the United States' new normal.

Go deeper

Trump's 2 chilling debate warnings

Photo: Morry Gash/Pool via Getty Images

One of the few groups in America with anything to celebrate after last night's loud, ugly, rowdy presidential "debate" was the violent, far-right Proud Boys, after President Trump pointedly refused to condemn white supremacist groups.

Why it matters: This was a for-the-history-books moment in a debate that was mostly headache-inducing noise. Trump failed to condemn racist groups after four months when millions marched for racial justice in the country's largest wave of activism in half a century.

Ina Fried, author of Login
55 mins ago - Technology

Candidates go online to cut through debate noise

Photo: Saul Loeb/AFP via Getty Images

While President Trump and Joe Biden fought to be heard in a rowdy debate Tuesday, both campaigns sought to draw digital battle lines and occupy online turf they could have all to themselves.

The big picture: Trump's impulsive Twitter style made a shambles of the debate format, but online the candidates were able to find niches where they couldn't be interrupted — and could motivate their supporters to donate, organize and turn out to vote.

Ben Geman, author of Generate
2 hours ago - Energy & Environment

Shell plans up to 9,000 job cuts by 2022

A Shell station in Brazil. Photo: Rafael Henrique/SOPA Images/LightRocket via Getty Images

Royal Dutch Shell will shed up to 9,000 jobs as it undergoes a long-term restructuring around climate-friendly energy sources and continues to grapple with the coronavirus pandemic that has battered the oil industry.

Why it matters: The cuts could amount to over 10% of the company's global workforce, which was 83,000 at the end of 2019.