Dumont, also known as KM, was a Vietnam War veteran and the father of Krista Dumont. Suffering from mental instability, KM committed suicide and attempted to kill his daughter as well in order to prevent his wife from gaining sole custody.
"He picked me up, hugged me... told me he loved me more than anything. And he said... if he can't have me, then neither could she. And he jumped out the window. He died. I lived. He needed help. He needed someone to save him, but there was no one there."
KM enlisted in the United States Army and served during the Vietnam War. After returning, he, alongside his wife, raised their daughter Krista Dumont but was mentally unstable. Having a domestic argument pending a divorce, KM embraced his daughter in his arms, leaped from a window, intending to kill himself and his daughter. KM died from the fall although his traumatized daughter survived.