Christopher Krumm, the 25-year-old Vernon man who killed his father and his father's girlfriend in Casper, Wyo., last month before killing himself,, left behind a lengthy letter expressing anger over inheriting Asperger's syndrome and praising eugenic policies in China.
"I am extremely bitter and frothing with hatred toward my father. I am resentful that my country did not castrate him," he wrote in a two-page missive titled, "Tired of Having Asperger Syndrome; America Should Look to China."
But the Casper Police Department, which released the letter in response to a Freedom of Information request, said Krumm had diagnosed himself.
"There is no proof he was ever medically diagnosed with any form of mental or physical condition," police said. "People should use this information to help identify similar ideations and intervene prior to such tragic events."
Krumm drove to Casper, Wyo., on Nov. 30 and fatally stabbed Heidi Arnold, 42, outside her house. She was a professor and Krumm's father's girlfriend.
Krumm then drove to Casper College, where he shot his father, James Krumm, 56, in the head with a bow and arrow in front a room of four to six students before stabbing himself with a knife. Police say Arnold and James Krumm lived together at the Hawthorne Avenue home where Arnold was stabbed.
Identical copies of Krumm's letter were found at both crimes scenes, police said.
In his opening paragraph, Krumm said that, despite having a master's degree in electrical engineering, he had been unable to solve problems at work. That caused him to be fired from his job as an engineer at Western Area Power Administration. He also resigned from two other jobs and was laid off once.
"I am not willing to live with Asperger's syndrome anymore," Krumm wrote. "In fact I call on people who are born to cognitively or physically impaired people who are genetically predispositioned so to take action to punish their parents for having put them through so much hell."
Most of Krumm's letter praises policies in China, like the country's one-child policy, its investment in biotechnology and its foreign policy. The letter also criticizes the U.S. for allowing cognitively impaired people to breed, for its dependence on foreign oil and its lack of fiscal discipline.