Canada -- York police said a A 57-year-old Richmond Hill judo instructor has been arrested and charged after being accused of assault on four of his students, according to cp24.com.
It is reported that the investigation began in May 2010 when investigators received information that led them to look into alleged abusive behavior at the club.
The alleged victims are four boys between the ages of six and 15. The charges against the instructors indicate a weapon may been used. The charges also include a single count of uttering death threats.
The instructor - who reportedly served as the "Vice President of Karate-do" in Ukraine during the early 1990s - allegedly holds a black belt rank in judo, karate and jiu-jitsu.