Dr. Bakuneeta suggests that the killer chimpanzee came from a habituated population. However, I do not think this is based on sound evidence or reasonable speculation. First, Gombe's case occurred long before Goodall succeeded in the habituation of her chimpanzees. Second, it is true that some chimpanzees increasingly use intimidation displays in the presence of and even attack human observers as habituation makes progress. However, there is no evidence that chimpanzees who are accustomed to humans become more likely to kill and eat human infants.
Chimpanzees are predators from the onset.
Habituation does not bring out their carnivorous tendency. Wild chimpanzees apparently kill and eat any medium-sized mammal from 1 to 10 kg in size. Human observers should not leave their infants or small children alone in their camp if wild chimpanzees regularly visit it. This has been a common sense rule that has long been observed by researchers of Mahale, and very probably Gombe. The editorial office of PAN is now trying to obtain information on this event.