Kim Ha - young believes her husband was murdered for helping North Koreans to defect . Her husband , Kim Chang - hwan , was found dead in a Chinese hospital across the North Korean border . Hospital officials said Kim Chang - hwan had committed suicide by using pesticides . A blood sample tested in Seoul found high levels of a poison to kill a person .
Kim Ha-young believes her husband was murdered for helping North Koreans to defect . Her husband , Kim Chang-hwan , was found dead in a Chinese town across the North Korean border . Hospital officials said Kim Chang-hwan had committed suicide by swallowing pesticides . A blood sample tested in Seoul found high levels of a poison to kill a person .