Do bears have killer instinct?
A bear usually kills its prey by biting it on the back or neck. The bear uses his forepaw to strike very hard, usually breaking the prey's spine so this is why usually his killing instinct is on the back part of a prey. Bears also bite their prey on the snout.
this information can be found at the end of this article: http://www.largecarnivores.fi/species/brown-bear/bears-diet-and-hunting-behaviour.