(CNN) Sandra Parks wrote an award-winning essay about the constant shootings in her hometown of Milwaukee and elsewhere, and the emotional toll they have on young people like her.

"Little children are victims of senseless gun violence," she wrote. " ... I sit back and I have to escape from what I see and hear every day. When I do; I come to the same conclusion ... we are in a state of chaos."

Two years after she won an award for her essay, bullets shattered Sandra's bedroom window as she watched television Monday night. The stray bullet fired from outside her home hit the 13-year-old, killing her, CNN affiliate WISN reported.

"She took it like a soldier," her sister, Tatiana Ingram, told the affiliate . "She just walked in the room and said, 'Mama, I'm shot' ... The bullet wasn't even for her."

She was killed in her home

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