Leilah Hernandez, a mass shooter in Texas, said during a vigil on Sunday night that the tragic death of the 15-year-old girl feels like the loss of a sister.
Yasmin Natera, age 16, and Celeste Lujan, age 15, wore a billboard with photos of Hernandez during the evening service in remembrance of the seven people killed at the University of Texas in the Perm on Saturday.
"[Leilah] was full of joy and happiness. Know how to turn a bad day into a good day, "Natera told the Post. "She saved people from trouble."
The teenager was "more attuned to the school than the boys," her friends said. On Saturday, Leilah and her 18-year-old brother Nathan Hernandez picked up a truck. He had just bought from a dealer in the Odessa-Midland region when a gunman started firing from a car.
Nathan wrapped his arms around his sister and was hit by a bullet in his right arm, her grandmother Nora Leyva told The Washington Post.
Leilah was shot near her clavicle by her left shoulder, Leyva said.
Her last words were, "Help me, help me."
Nathan paid tribute to his sister on Twitter and wrote, "I'll always love you, baby sister."  "I wish [it] was me," he wrote. "You still had your whole life ahead of you."
The high school student from Odessa had just celebrated her Quinceanera in May. Photos of the event show her looking like a king in a dazzling green dress.
She was thrilled to take catechism lessons, her grandmother said.
Leilah also played basketball. Her classmates asked students to wear their number 23 or green on Tuesday morning.
Natera and Lujan said they would place their poster in front of a tree near their school where the three would normally meet before class.
"She just wanted to help people …" Natera said about her friend. "It's like losing a sister."