Taekwondo instructor kills boy, his family

The Taekwondo academy where the boy and his mother were killed. Pic/AP

A taekwondo instructor killed a 7-year-old student at his academy and the boy's parents before going to a Sydney hospital with stab and slash wounds on his body, police said Wednesday. Kwang Kyung Yoo is the owner of the Lion's Taekwondo and Martial Arts Academy and known to his students as Master Lion.

The crimes were discovered after the instructor admitted himself to a hospital on Monday with "stab wounds or slash wounds" to his body. The man told police he had been attacked in a car park. Police allege Yoo killed Min Cho, 41, and her son at his academy on Monday before driving to their home, where he killed Cho's husband and the boy's father, Steven Cho, 39.

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