Yes, Sumatran tigers kill people. Factually, tigers cause more human deaths via direct attack than any other wild mammal on the planet. Man-eating tigers have reached a point of desperation. They’re usually older, slower, and have missing teeth, rendering them incapable of catching their preferred prey. In 2009, a tiger named Salma went on a killing spree in a small Sumatran village. She murdered three people over a few days. Researchers later determined that someone had taken her cubs, which prompted the rampage.