A 47-year-old Chinese woman who spent most of her life searching for her young brother’s cruel killer recently reached her goal, putting her target in prison after nearly three decades.

Li Haiyu’s heartbreaking tale of revenge began in December of 1992 when the woman’s father and another man started arguing about wages. Things got so heated between them that at one point, the other man decided to get back at Haiyu’s father by kidnapping his 9-year-old son, Li Huanping, as he left school. Police were called and a search for the boy and his kidnapper was organized in the area around their village in Hunan Province. Li Huanping’s clothes were found on the outskirts of a nearby village, but his body was only found in February of the following year, by which time his kidnapper had disappeared. The police report concluded that he had been stabbed and abandoned in a sugarcane field, but his father didn’t tell his wife and five daughters the truth until his dying day, letting them hold on to the hope of one day being reunited with Li Huanping.