Seventeen people were killed and dozens injured in a mass shooting at a Florida high school on Wednesday afternoon (local time).
Among the victims of former pupil Nikolas Cruz were 14 students of Marjory Stoneman Douglas High School, and three members of staff.
Here are those who lost their lives.
The student was just 14 years old. Her father described her as kind-hearted and sweet.
The senior was known as a talented athlete and was pushing for a spot on the US Olympic swimming team for 2020. He had just received a scholarship for the University of Indianapolis.
A friend said his death was "devastating and heartbreaking".
"He selflessly shielded students from the shooter when he was shot. He died a hero and he will forever be in our hearts and memories," a Twitter post by the school read.
County sheriff Scott Israel described the football coach as "one of the greatest people I knew".
He was 14. A post by his older sibling called him "a very funny kid, outgoing and sometimes really quiet".
"He was sweet and caring and loved by all his family," it said.
Her Mormon church said she was a "valiant" member of their community.
She was also just 14.
A member of the high school's guard team, and also only 14.
"We lost a beautiful soul tonight," a friend wrote on Facebook.
The Venezuelan-born teen was known colloquially as Guac.
He had just become a US citizen in 2017, and has been mourned by friends and family.
An aunt told the Palm Beach Post that Pollack, 18, was "the light of our life."
"She was beautiful. We all loved her. She had a big family that loved her."
The Athletic Director at the high school, the 49-year old was an Iraq war veteran.
A friend said he "would give you the shirt off his back" and "is probably the nicest guy I have ever met".
The 15-year-old died holding the door open so his classmates could escape.
"He wasn't supposed to die," his cousin Aaron Chen told the Miami Herald. "He was supposed to grow old with me."
His father called him a "sweetheart of a child" who "just wanted to do well and please his parents".
He was 14 years old.
Fifteen-year-old Alyssa was a player on the school soccer team.
Her mother told HLN-CNN her daughter was " beautiful, smart, talented, successful, awesome, [and an] amazing soccer player."
His grandparents described the 15-year-old as "precious" when they confirmed his death.
His aunt said on Facebook the family was in a state of "shock and disbelief".
The 17-year-old was described as a reserved and studious girl by a family member.
"She was deeply loved and loved others even more so," they wrote on Facebook.
The 35-year-old geography teacher was killed as he tried to lock the classroom door after letting students flee the gunman inside.
"He was my hero and he will forever be my hero. I'll never forget the actions he took for me," a student told CNN.
Cara's parents rushed to the hotel where parents were reunited with their children to collect her, but she was not there.
Her neighbour later confirmed on Facebook that she had been killed, saying she will be greatly missed.
Sixteen-year-old Carmen was well known as a gifted student.
A friend paid tribute to her on Facebook, saying she was known for her intelligence.
"I was in the same classroom as this beautiful soul. She was so bright and had her entire life ahead of her," they wrote.