A registered nurse from Tennessee who died shielding his wife, a doctor, from gunfire. The only son of a Canadian couple who is now left childless. A California middle school special education teacher engaged to be married.

All were among the at least 59 people killed in the mass shooting at a country music festival in Las Vegas.

Families, friends, coworkers and neighbors shared stories Monday about some of those slain and the hundreds more who were injured after a gunman opened fire on festivalgoers.

Off-duty Las Vegas police officer and youth football coach Charleston Hartfield was among those killed when a gunman opened fire on a crowd of concertgoers in Las Vegas, two of his friends said.

Hartfield, 34, was known as a selfless, respected leader who brought out the best in his players, said Stan King, whose son played football for Hartfield.

Troy Rhett, another friend of Hartfield's through football, said he knew from social media that Hartfield was attending the Sunday concert. When he heard about the shooting, he texted him, hoping to learn Hartfield was safe. He never heard back, and Rhett said he learned through another friend Monday morning that Hartfield had died.

Hartfield, who also went by “Chuck” or “Charles” or even “Chucky Hart,” was also a military veteran and leaves behind a son and a daughter, Rhett said.

Hartfield is also listed as author of a book titled “Memoirs of Public Servant” about his time as a Las Vegas police officer.

Commercial fisherman Adrian Murfitt, 35, of Anchorage, Alaska, was also among the slain, a family member said Monday.

His sister, Shannon Gothard, said the family heard from one of Murfitt's friends who was with him when he died, though they haven't received official confirmation about his death.

Asked if the family was holding out hope that he made it after all, she said, “No. No.”

Gothard described her brother as a man with a hearty laugh and a former competitive hockey player who still dabbled in the game.

“His whole life was always around hockey,” she said.

After graduating from high school, he became a fisherman, picking up odd jobs in the offseason.

He had just come off an extremely successful fishing season when he made the trip to Las Vegas with some good friends, Gothard said.

Her brother “was happy to pay some things off and had made some really good money and decided to go out and celebrate and go to the concert and treat himself to something nice and fun,” she said.

Karessa Royce, a 22-year-old Las Vegas local, was rushed to an ambulance by a friend after she was shot in the shoulder, said Melissa Rios, her cousin who is acting as a family spokesman.

Royce, a student at the University of Nevada, Las Vegas, is in the intensive care unit following surgery for a collapsed lung. She is expected to survive, Rios said. Royce had no identification on her at the concert, so it took the family some time to locate her, Rios said.

Royce is one of five children and studying hospitality at school.

Royce's friend “definitely saved her life,” Rios said. Royce cannot speak, but her friend shared what happened with the family and has been in the hospital by Royce's side since, Rios said.

While the sun was still shining Sunday at the Route 91 Harvest Festival in Las Vegas, Denise Burditus posted a photo on Facebook of herself and her husband standing in front of the stage, smiling broadly.

Later, after news of the massacre spread, a friend asked simply: “Are you two ok????”

Burditus never replied.

The Martinsburg, W.Va, woman was among dozens of people killed when a gunman opened fire from a hotel overlooking the festival. MetroNews, a West Virginia-based radio network, reported that Tony Burditus wrote on his Facebook page that his wife was among the victims.

“It saddens me to say that I lost my wife of 32 years, a mother of two, soon to be grandmother of five this evening in the Las Vegas shooting,” Tony Burditus wrote. “Denise passed in my arms. I LOVE YOU BABE.”

Denise Burditus' Facebook page includes a photo of her and her husband at the same festival last year. Mandalay Bay, the hotel where the gunman opened fire, is shown in the background.Sonny Melton, a registered nurse, died in the shooting, according to The Henry County Medical Center in Paris, Tenn., where he worked.His wife, Dr. Heather Melton, an orthopedic surgeon who was with him when shots were fired, survived, the medical center said.Heather Melton told WZTV in Nashville, Tenn. that her husband “saved my life and lost his.” She says her husband was the most kind-hearted, loving man she ever met.Friend Jeremy Butler told the Paris (Tennessee) Post-Intelligencer that Melton was shielding Heather Melton from gunfire when he was fatally shot.Danae Gibbs has always been a huge fan of country music concerts, said her friend, Jennifer Draper of Cedar Park, Texas, and she was thrilled to be at the concert.Draper wrote in an email to The Associated Press that Gibbs, 23, who recently graduated from Texas Tech University of Lubbock, was shot at the concert in Las Vegas and is recovering.Draper started a GoFundMe page to help Gibbs and her family with the medical expenses. On the page is a photo of Gibbs wearing a graduation cap and red Converse sneakers, jumping in the air with a huge smile in front of her university.“Danae is a strong young woman and I firmly believe she will make it through this long road to recovery!” Draper wrote. “She is a woman of strong Faith and has hundreds of people praying for her! We love Danae and cannot wait to see her!”Real estate agent and father of three older children Rob McIntosh, 52, of North Pole, Alaska, was near the front of the stage with friends when the shooting began, according to friend and real estate broker Mike Vansickle. He was hit repeatedly but survived, Vansickle said.“From just getting off the phone with the family, he took three bullets to his body,” said Vansickle. “He just came out of surgery, and he's going to make it.”Lisa Romero, a high school secretary from Gallup, New Mexico, was an “incredible loving and sincere friend, mentor and advocate for students,” the Gallup-McKinley County Public Schools interim superintendent said Monday.District officials confirmed to reporters on Monday that Romero, 48, died sometime after the shooting started.“Last night during the mass shooting in Las Vegas we lost one of our staff members,” interim Superintendent Mike Hyatt wrote to employees. “Lisa Romero, discipline secretary at Miyamura (High School), was a victim in the shooting. Our prayers go out to her family during this tragic time.”