An ancient Chinese form of assassination; believed to be legendary. The killer eliminates the victim with a touch, transferring Chi (a form of energy in all living things). It was the evil offshoot of the Chinese medicinal practice which suggested people could be cured by transfer of Chi.
Legends speak of those who developed their powers to such a degree that they could kill simply through thought. Some suggest that Bruce Lee was killed by an expert in Tien Mo, explaining his sudden and rapid demise.