Everything in this novel has a violent, painful edge to it. Hannah's tone on the tapes could even be described as violent – she is trying (and in Clay's case, succeeded) to inflict pain on her listeners. Her tapes reveal that her world is a dangerous place: many of the critical events she describes focus on extreme incidents of violence, including a possible rape and the death of a high school boy. But Thirteen Reasons Why addresses another kind of violence often forgotten in young adult literature: violence against oneself. Hannah's inability to deal with the cruel world around her leads to the ultimate act of violence when she takes her own life.
Hannah's decision to kill herself is influenced just as much by the physical violence she encounters as the emotional violence she is subjected to every day.
Thirteen Reasons Why is insensitive toward violence. There's too much of it and it's treated too casually.