Most likely not. Of the 15 cases of feet that the article had mentioned, 10 were solved. While the article didn't explicitly say so, it's implied that the cases are not linked in any way.Aside from that, the authorities are right. Feet washing up on shore is not actually a cause for public concern, at least not in regards to a possible serial killer, and it's a lot more common than most people know about. People die at sea all the time, usually unintentionally and accidentally, and there are also suicides that you have to take into consideration. Of the possible cases of murdered people being dumped out into the sea somewhere, the likelihood that any of them are linked to a common killer is incredibly low to nonexistent. They didn't get into details, but the feet were most likely separated from their bodies either by decomposition or by sea animals feeding on their corpses. Currents take care of the rest. The victim found in the bag is completely unrelated. MO is different, murder was most likely committed by someone who knew the victim and who wanted to dispose of the evidence so most likely dumped the remains off a bridge into a river that empties out into the sea. Then the current brought it around to shore. EDIT: https://www.vox.com/science-and-health/2017/12/18/16777724/human-feet-beach-pacific-northwest-seattle-vancouver
