ALLEN PARK -- Alex Carter had other plans. He was going to finally get together with a girl he had met through social media and had been texting with for weeks. Instead, he called an audible and attended his younger sister Cameron's volleyball game that evening.
It turned out to be the last night of Cameron's life.
Carter, then a high school senior at Briar Woods High School in Ashburn, Va., was upstairs in his bedroom when he heard his mother's screams. At first, he thought she might be overreacting to something silly, like a spider. But when he came down to check it out, he saw his sister unconscious on the floor.