Instead of boarding the school bus as usual September 10, Rebecca Sedwick changed the name on her cell phone to "That Dead Girl" and sent a text to a friend.
"I'm jumping and I can't take it anymore," the 12-year-old wrote, then proceeded to climb a tower at an abandoned cement plant and leap to her death.
Police believe Rebecca had been bullied for more than a year, and two girls, ages 12 and 14, have been charged with aggravated stalking as a result.
Deputies arrested the girls and released them to their parents' custody.
The 14-year-old girl, whose name is being withheld, allegedly began taunting Rebecca Sedwck in the halls of Crystal Lake Middle School in Lakeland, Fla.
The 14-year-old also started dating Rebecca's former boyfriend.