Simon wanted to die?

Yes, Simon was unhappy with his life and suicidal. He hated his own life, the people around him, and what he saw in his future. He sympathized with school shooters and knew that he, too, wanted to take down those he hated the most when he died. He was utterly cruel, as he thought school bombing was an easy way out, not letting his peers suffer enough. Instead, he decided to frame the students he hated for his murder, hoping to ruin their lives forever.