I answered my own question.
Cutaneous: Most (about 95%) anthrax infections occur when the bacterium enters a cut or abrasion on the skin, such as when handling contaminated wool, hides, leather or hair products (especially goat hair) of infected animals
The intestinal disease form of anthrax may follow the consumption of contaminated meat and is characterized by an acute inflammation of the intestinal tract.
So, it couldn't have been from eating because that'd be intestinal, and he couldn't have gotten it from a skin lesion (which makes up 95% of the admittedly rare disease).
Help me out with facts. I'm starting to get real nervous.