A sports coach at a Florida high school targeted by a mass shooter on Wednesday is being hailed as a hero for shielding students from bullets.
Aaron Feis, assistant American football coach at Marjory Stoneman Douglas High School in Parkland, was fatally injured when he dived in front of a pupil.
Details of some of the 17 people who died are beginning to emerge.
The MS Douglas Eagles, the football team at the school, confirmed Mr Feis’ death on Twitter. “He died a hero,” they wrote.
Head football coach Willis May was told by a student that Mr Feis had jumped between her and the attacker, pushing her through a door to safety.
Mr May said he had died at about midnight on Wednesday.
Students led tributes to their former coach as news of his actions and injuries spread.
“He was a great guy,” another football player, Gage Gaynor, told local newspaper the Sun-Sentinel.
“Everyone loved him. Shame he had to go like this. Always gave his all to making us better. Definitely learned a lot from him.”
Mr Feis also worked as a school security guard.
He responded on walkie-talkies to chatter about the attack when it began.
Mr May, who also carries a radio, said: “I heard Aaron say, ‘No, that is not firecrackers.'”
“That’s the last I heard of him.”
Former student Andrew Hoffman, who also recently worked at the high school as a swimming coach, said Mr Feis was “very well dedicated” to safety at the school in his capacity as a security guard.
Fred and Jennifer Guttenberg were among those who took to social media to try to locate their missing children on Wednesday night.
While their son Jesse was able to return home safely, their daughter Jaime was fatally injured.
Her Facebook page has been turned into a memorial and her father has confirmed her death, thanking people for their messages of support.
This photograph of Alyssa Alhadeff and “pop pop” was widely shared on Facebook by her cousin, Melissa Dibble, who appealed for people to help find the missing teenager.
She later confirmed on her Facebook page that the student had lost her life at the age of 15.
Another cousin, Ariella Del Quaglio, said her “heart is broken” at the loss.
Nicholas Dworet was confirmed dead by his aquatic team on Facebook, who posted: “It’s with a heavy heart that I/We have to announce that our family member, teammate, TS Aquatics swimmer Nick Dworet has passed away.”
His partner Daria Chiarella changed her Facebook profile picture to a selfie Nicholas took, which prompted an outpouring of support.
“I’m so sorry, we all love you so much and are here if you need anything,” read one comment.
Martin Duque was confirmed dead by his brother Miguel Duque, who posted this photo of them together on Instagram.
“Words can not describe my pain,” he wrote. “I know you’re in a better place.”
Chris Hixon was the athletic director at the high school and was reported dead by local media.
A photo was later shared of Mr Hixon at his US Navy retirement ceremony with his son, Thomas Hixon.
Teacher Scott Beigel let students into his classroom to shelter and was shot dead by the gunman while trying to lock the door, a student told Good Morning America.
Matt Hipps took to Facebook to share his memories of Mr Beigel, calling him: “My friend, my brother, my family.”
“He made the ultimate sacrifice,” said Mr Hipps. “I won’t say goodbye. It just hurts too much. I will see you on the other side.”
Meadow Pollack was a senior at the high school. Her father confirmed to local media that she had died.
A family friend had previously posted on Facebook looking for information, and the teenager’s Facebook page has been changed into a memorial.
Her friend Gii Lovato took to Facebook to share her thoughts.
Cara Loughran was confirmed dead by a family friend who wrote on Facebook, “Cara’s parents were given the news no parent ever wants to hear at 2am.
“This is too horrible to even begin to process,” she added.
This photo of Gina Montalto was widely shared on social media by her neighbour Michael Citron.
Her death was later confirmed as her mother changed her Facebook profile picture to waves crashing against rocks.
Joaquin Oliver was confirmed dead by a Venezuelan journalist who was with his family when they received the news.
His most recent photo on his Instagram page, with girlfriend Victoria Gonzalez, has seen an outpouring of support.
This includes comments from friends and strangers alike, many of whom simply wrote ‘que en paz descances’ – Spanish for ‘rest in peace’.
More details about the victims will be added to this story as they emerge