According to Yomiuri Online, a 27 year old jobless man was arrested for stalking a seiyuu Ikezawa Haruna last July. The man have defamed Ikezawa on her official BBS and sent numbers of emails to press her an association with him.
Ikezawa Haruna disclosed last February that she has been stalked by the man for years and once he waylaid her on a street at night and threatened her. He was eventually placed under a restraining order.
Source: Yomiuri Online