Police sent papers to prosecutors accusing a 16-year-old girl of posting a threat on the Internet to commit mass murder in Tokyo's Shibuya district.
"I quit high school and was bored, so I wanted to do something that would attract attention. I mimicked the Akihabara incident," the girl was quoted as telling police, referring to the June 8 random street killings in Tokyo's Akihabara that left seven dead and 10 injured.
The unemployed girl from Saitama Prefecture stands accused of violating the Minor Offense Law for obstructing the business of police officers who went on the alert after the threatening messages were posted online.
According to Shibuya Police Station, the girl posted a total of 28 messages on a mobile phone site using a cellular phone registered under her father's name for about 30 minutes from around 3:17 p.m. on June 10.
Entitled "Murder notice," the messages read: "I will kill people in Shibuya on June 13," "I will stab them with a survival knife," and "I'm sure I can kill 10 or more people."
The girl also entered messages hailing Tomohiro Kato, 25, the suspect in the Akihabara stabbing spree.
"I yearn for Kato," "Kato is so cool," the messages read.