Police will serve a man who has been indicted over a series of online threats with a new arrest warrant for allegedly threatening by email last August to attack a Tokyo kindergarten, sources said Wednesday.
Yusuke Katayama, a 30-year-old former information technology employee, is suspected of sending the email threat via a hijacked personal computer infected with a virus that allowed for outside use by remote control.
Katayama was indicted last month over online threats, including one against Japan Airlines. He has denied the allegations, according to police.
The Metropolitan Police Department initially arrested the PC’s owner, a Fukuoka man, over the threat against the Ochanomizu University-affiliated kindergarten, but was later forced to apologize after admitting to the wrongful arrest.