Yep.... 30 cc intravenous bolus of ProCure UV Sardine oil directly into the jugular would have done the trick.

Massive congealed sardine oil embolus into the pulmonary circulation would've dropped them all in a few heartbeats.

DISCLAIMER: I'm a trained professional so don't any of you amateurs try this at home without the direct supervision of a physician certified under the WA Dying with Dignity Law.... goes without saying that fishNphysician's are the ultimate authority in this arena.