A 'very sweet' boy and a talented dancer among Georgia dead

Maths teachers Cristina Irimie and Richard Aspinwall were among the four killed

Four people have been killed and nine others injured in a shooting at Apalachee High School in the city of Winder, Georgia.

Officials have identified the deceased as students Mason Schermerhorn and Christian Angulo and teachers Cristina Irimie and Richard Aspinwall.

The 14-year-old suspect was arrested and will be prosecuted as an adult.

Here is what we know about the victims of the attack.

Mason Schermerhorn

Mason Schermerhorn was one of two 14-year-olds who were killed. In an interview with the Washington Post, his 17-year-old sister Alanna remembered him as "very energetic and kind."

She said he was "sympathetic for people". He loved to play video games with her and their little brother, Gavin, like Super Mario Party on Nintendo Switch, Alanna said. He also covered his bed in stuffed animals and collected rubber ducks.

“I wasn’t expecting him to be one of the people killed,” Alanna told the newspaper. “I’m just numb.”

Friends of the child's mother told the New York Times that he had recently started at Apalachee.

He was described as light-hearted, and enjoyed reading and visiting Walt Disney World.

Mason had an "upbeat attitude about everything", Doug Kilburn told the newspaper.

Another friend, Louis Briscoe, described the moment he heard of the boy's death from his mother, commenting: "Nobody should have to go through this type of pain."

Before he was killed, Mason had texted his mother during the shooting to say that he was safe and sheltering inside a restroom, a chaplain who works with his mother told Fox News.

Christian Angulo

Lisette Angulo identified herself as the elder sister of the shooting's other 14-year-old victim, Christian Angulo.

In a GoFundMe page aimed at raising money for the funeral, she said her brother was "a very good kid and very sweet and so caring". She went on to say the boy was "loved by many", describing her heartbreak at her loss.

Speaking to the Washington Post, his father, Ismael Angulo, said he nicknamed his son "murcielaguín", which is Spanish for little bat.

He told the newspaper that his son loved to visit relatives in Mexico and play school.

"What can I say," Mr Angulo said of his son's death. "It's difficult."

Schoolmates remembered Christian as funny and with a "chill" attitude, Fox 5 Atlanta reported.

One friend who said the two had been close since middle school said he was "in denial" after hearing about the deadly shooting.

Christina Irimie

Christina Irimie was one of two teachers killed in the shooting.

The 53-year-old is named on the Apalachee High School website as a maths teacher.

On the day of the shooting, she reportedly was celebrating her belated birthday with her students and had brought in desserts and treats for the classroom.

Students described her as patient and caring, Fox 5 Atlanta reported.

Ms Irimie was born in Romania and had come to the US more than two decades ago, a parish priest at a local Romanian Orthodox Church told the Atlanta Journal-Constitution newspaper.

Nicolae Clempus said she was someone “you know you can count on” and was a talented dancer who taught traditional Romanian dance to children.

“She definitely had a gift to work with young people,” the priest said.

In a separate interview with CNN, Mr Clempus said his parish is grieving her death.

“We are frustrated that she faced the evil on the front lines and basically gave her life being there, facing the wrath of a person that – for I don’t know what reason – did this thing,” he said.

"It is unfair how things evolved and how it happened, and we are very, very sorry for the way we have to say goodbye.”

One of her students told BBC's US partner CBS News that she was a "real nice" teacher, who liked to tell "corny jokes" and always made him feel confident.

“She never made me feel dumb,” Isaac Sanguma said. “You could get a question wrong on the board, and she’s not going to make you feel dumb. She will make you feel welcome.”

A GoFundMe launched to support her family says Ms Irimie "dedicated her life to shaping the minds and hearts of students and the community".

Richard Aspinwall

A second maths teacher, 39-year-old Richard 'Ricky' Aspinwall, was also killed.

He was also the defensive coordinator for the school's American football team. The head coach praised him as "a great dad, man and a great father".

"He loved his two girls and he loved his wife," said coach Mike Hancock. "He did happen to love the game of football and he was well respected around this area."

His cousin, Katie Seagraves, took to social media to remember Mr Aspinwall, writing that he was a "great father and loved his job so, so much".

"I’m so mad and sad that he was taken away for no reason and his sweet girls and wife no longer have him," Ms Seagraves wrote. "My heart breaks so bad. This one hurts."

He has also received tributes from his sporting peers.

Nearby Mountain View High School identified Mr Aspinwall as its former teacher and coach, saying its "thoughts and prayers" were with his family.

Brandon Gill, the football coach of nearby Buford High School, wrote on social media that Mr Aspinwall was a "helluva human being" who "would do anything for anyone." He was an "amazing husband, father, teacher and coach", he added.

A football game scheduled for this weekend has been postponed in the wake of the shooting.

People injured in the Georgia high school shooting

As well as the four people who were killed, eight students and a teacher were wounded.

The teacher was identified by his daughter as David Phenix. He has a role in curriculum assistance, according to the school's website.

His daughter said he underwent surgery after being shot in the hip, and that she felt "so, so lucky" he had survived.

Little has been revealed about the eight children who were injured.

Police say all those who were hurt in the attack are expected to recover.