Orcas are known to be smart and ruthless hunters. They've been observed hunting a variety of prey, with some species, such as whales, larger than themselves. They use a wide range of strategies to hunt and kill prey, but now, in the Gulf of California, researchers have observed one that hasn't been described before.
It’s the sort of thing you see in a horror movie where the slasher is having some fun
Scuba diver horror. The villain forces their diver hostage to watch this happen to a sunfish, then releases the orcas and one grabs the diver by a limb.