Months before he hacked 19 people to death at a facility for the mentally disabled, Satoshi Uematsu delivered a letter to Parliament in which he outlined his heinous intentions.
In his February letter, the 26-year-old demanded that all disabled people be put to death through “a world that allows for mercy killing,” Kyodo news agency and TBS TV reported.
He claimed to be able to kill 470 disabled people in “a revolution” — describing an attack on two facilities, after which he said he would surrender.
He also asked he be declared innocent on grounds of insanity, be given 500 million yen ($5 million) in aid and plastic surgery.
“My reasoning is that I may be able to revitalize the world economy and I thought it may be possible to prevent World War III,” he wrote.
The rambling letter — which included his name, address and phone number — was sent to local police where Uematsu lived, Kyodo news reported.
In his 40-minute knife attack at a care facility for the mentally disabled where he worked until February, Uematsu also left 25 wounded before he turned himself in Monday, officials said.
“I did it,” he told police, Agence France-Presse reported. “The disabled should all disappear.”
Uematsu, who worked at the facility from 2012 until he was let go in February, once dreamed of becoming a teacher and seemed upbeat in social media posts.
“It was so much fun today. Thank you, all. Now I am 23, but please be friends forever,” he wrote on Facebook in 2013.
His neighbors described him as polite.
“He was just an ordinary young fellow,” said Akihiro Hasegawa.
With Post Wires