Tristan Dilley's friends and classmates mourned the loss of the "firecracker" high school freshman during a vigil Tuesday evening at Silsbee High School. Dilley, 14, was fatally shot in a second-floor room of her mother's Buna home on Sunday evening. Authorities said Dilley's suspected killer, 19-year-old Paul Audrey Adams of Vidor, died from a self-inflicted gunshot around noon on Monday. Dilley was remembered Tuesday, on what would have been her 15th birthday, with purple balloon release on the high school football field, followed by an impromptu get together at the town's Taco Bell, which was Dilley's favorite place to eat.