Born in Miaoli County to a family of Hakka descent on 23 November 1927,[1] Yang earned a degree from the National Taiwan University College of Medicine.
At his graduation, Yang was the only member of his class to have been trained in forensics, a field he sought to pursue after seeing his brother jailed due to a coerced confession and a friend's subsequent wrongful conviction on charges of theft.
Suspect Lin Hsien-kun sexually assaulted Chang before killing and dismembering the victim,[3] resulting in Taiwan's first homicide involving dismemberment.
[2] The 1990 death of Iguchi Mariko [zh] remained unsolved until the next year, when the body was discovered and Yang joined the case.
Over the course of his career, Yang Jih-sung allegedly handled over 30,000 bodies and was frequently compared to Sherlock Holmes and Bao Zheng.