"In Hitoyoshi, Kumamoto Prefecture, a high school girl was strangled in May 2014. A man in his 40s who was charged with murder in the case is believed to have met the girl via an online community site."
http://ajw.asahi.com/article/behind_news/social_affairs/AJ201504170004
Record number of minors victimized in crimes linked to online community sites - AJW by The Asahi...
A record high 1,421 minors under 18 years old fell victim to crimes related to social networking services and other online community sites in 2014, a National Police Agency report showed.