There are zero confirmed reports of a wild orca killing a human being. There have been a few "attacks" (mostly bites or bumps that were investigatory rather than predatory), but no fatal fatalities.
The statistics change significantly when looking at orcas in marine parks. Deprived of space and natural social structures, some captive orcas have exhibited lethal aggression. Tilikum (SeaWorld)
To date, the total number of people killed by orcas is . All four fatalities occurred in captive environments .
The term "Killer Whale" is a mistranslation of the Spanish name asesina de ballenas ("whale killer"), given by sailors who watched orcas hunt large whales. They are hunters, not man-eaters.
