Meanings of cannibalistic serial in English

I remembered-vaguely-asensationalizedlate-night TV special about a cannibalistic serial killer from Milwaukee who'd been apprehended in similarly gruesome circumstances.

I've finished examining four sets of remains, and they tell the same story: all victims of a gang of cannibalistic serial killers.

"True," said Corrie, adding in a low voice: "though I'm not finding anything that might point to a gang of cannibalistic serial killers."