

It’s a pun. The painting depicts the assassination of Julius Caesar. One of the most well known of the assassins was Caesar’s friend Brutus. In William Shakespeare’s play based on the event Caesar’s last words are “Et tu, Brute? Then fall, Caesar.” His actual last words are probably lost to time, but many people associate the line from the play with the event. As for the pizza thing, it’s probably just a setup for the joke.



Dennis Rader was a serial killer known as BTK (an acronym for Bind, Torture, Kill). His day job was installing security systems for ADT. Many of the people he installed security systems for were specifically concerned about BTK. He was also the leader of a Cub Scout troop.