Kelsey Meadows, of Taft, did not survive the mass shooting at the Route 91 Harvest Music Festival in Las Vegas, Brad Meadows, Kelsey's brother, confirmed on Facebook early Tuesday morning.
"My family and I want to take a minute and thank everyone that has been trying to help us locate my sister," Brad wrote on Facebook at about 6:30 a.m. "So it is with an absolutely shattered heart that I let everyone know that Kelsey did not survive this tragic event."
"Please keep my family in your thoughts and prayers as we try and move past this horrible time."
Kelsey, 27, was reported missing Monday. She is the third confirmed Kern County resident killed in Sunday's mass shooting at the Las Vegas concert.
People turned to social media to offer their condolences to the family.
"I am so sorry that this horrific tragedy took the life of sweet Kelsey," wrote Melissa Wright on Facebook. "Praying that God will give you all a peace that surpasses all understanding. Love you guys."
"My heart is broken and I am at a loss for words. Kelsey Meadows May you Rest In Peace pretty girl. You will be deeply missed. Love and prayers for you and the entire Meadows family," wrote Kim Perry, a family friend, on Facebook.
"Brad, I’m so incredibly sorry. My heart is aching and prayers go out to you, your mom and dad and the rest of your family," said Alison McCormick-Melendez.
Kelsey was a substitute teacher at Taft High School.
"Rest in Pace Ms. Meadows, thank you for all the great time you gave me as well as many other students," said Taft High senior Skyler Freeman, who had Kelsey as a long-term substitute teacher during the 2016-2017 school year. "I will not forget how comforting and understanding you were to our class as we transitioned into a different teacher. Prayers for her family."