9 bodies (torso murder) were found in a small apartment in Kanagawa, Japan.
Takahiro (27 years old) was arrested. He was recruiting suicidal people on Twitter.
There were multiple posts on 5channel(one of the Japanese largest Bulletin board) before the incident was discovered.
There are many points that are consistent with the contents of the case, and these are presumed to have been posted by the criminal.
There was a post saying "【How to process 50kg (about 110 pound) of meat today】" on August 2nd.
It says, "I have about 50kg of fresh meat here. I cannot eat all of them, but I do not know how to process or save them. Any idea?"
Takahiro killed 9 people. He disassembled the bodies and saved their heads and bones in cooler boxes. He also put cat litters in the boxes to eliminate odor.
He also mentioned:
"Do you think an amateur can disassemble the body? Blood already removed."
Also on September 9th, someone posted "Hurry! please teach me how to deal with dead body here!" .
This type of postings are actually very common since everyone can post on 5ch anonymously. Some are just totally fake. However, there are a lot of matching portions on those postings with the incident.
It is also reported that he was doing bizarre side job, which was to sleep with a man without having sex.