Cassidy was the sole survivor of a shooting carried out by a man identified as Ronald Lee Haskell. Haskell broke into her parents' home in Houston, Texas, and tied them up and killed them, along with her four siblings.
Despite being shot in the head, Cassidy amazingly survived, and later thanked the Houston community for their support during a ceremony, using a quote from Rowling's Harry Potter character Albus Dumbledore, Buzzfeed reports.
"In The Prisoner of Azkaban, Dumbledore says, 'Happiness can be found in the darkest of times, if one only remembers to turn on the light,'" she said in the ceremony.
Cassidy's inspiring outlook created a social media frenzy and a campaign was launched called We Want J.K. Rowling to Meet Cassidy Stay.
And the campaign's message has been heard. Rowling has not met Cassidy, but according to the Houston Chronicle, the campaign has reported that the author did pen the teenager a letter written in the voice of her beloved wizard character Dumbledore. However, it is believed that the content of the letter is private and meant to stay between Rowling and Cassidy.
In addition to a one-of-a-kind letter, a fundraising campaign has raised almost $400,000 to support Cassidy in her future and cover her medical expenses.
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