Even if it is speculation, I'm 100% sure that Pachter is missing the point. I doubt the killer said "subscribe to PewDiePie" because it's Pi day. Maybe that ran through his head, but it's not the main reason.
The main reason is that PewDiePie is a man who has received criticism for jokes where he's wear a Nazi uniform, show a big in-game swastika, pay people to hold up a sign that says "death to jews", as well as for screaming the N-word live over a stream. And his response to that criticism largely consisted of blaming the media. Not to mention how he's had Ben Shapiro as a guest, tweeted a compliment to Stefan Molyneux, received an invitation from Alex Jones, and sat alongside Janus Korwin-Mikke while explaining how women should shut up about income inequality.
It is not hard to figure out why a white supremacist who spends a lot of time on white supremacist websites would voice support for PewDiePie. It's really hard to imagine that it's was just the day.
