Maybe that was the source for the section on Eva Braun.
It's bad enough that he might have bought that for himself, but why was the link on his clipboard? Was a friend emailing him, "Hey man, I saw that dope sweatshirt you wore yesterday, the "I Heart Bad Bitches" one, and I was wondering if you can tell me where I can get one for myself. I happen to share a similar 'heart' for bad bitches, and I'm a little chilly, so I need that sweatshirt ASAP. Send me the link, and good luck on your paper about World War II."