G. R. Visini started writing her book, Mercy Kill, when she was 18 and spent years going back and rewriting. The book grew up with her, evolving from something targeted at YA to something more adult. Like most of us, she wrote a book she wanted to read and that changed as she grew up.
She wrestled and argued with editors about certain choices in the book, and like any writer who works with an editor, sometimes she stood her ground and sometimes conceded the point.
Outside of writing she studies Neuroscience and tries to incorporate much her studies and research into her writing.