Technically, vegan just means it contains "no animal" products. Think about that. It could have blood or have lab cultured tissue and qualify as vegan. There is one way.
I have a bad feeling we have mostly all been eating people and didn't know it. I go back to the post from 2011 (I an a Rofschild axe me anything). The poster said eating meat was eating pain. He thought he wasvhikarious and said he was vegan. Though vegan just means no animal products. To remember the thread and think of cannibalism it makes more sense. The poster also talked about the next great plan in the works but wouldnt elaborate. Viral shutdown would fit.