The 'Cool Motive, Still Murder' meme originates from the popular sitcom Brooklyn Nine-Nine, specifically from the Season 1 finale titled 'Administrative Leave.' During an interrogation, a suspect provides a somewhat relatable or noble explanation for their crime, to which Detective Jake Peralta (played by Andy Samberg) hilariously responds, 'Cool motive, still murder.' The phrase quickly transcended the show to become a staple reaction on social media platforms like Twitter and Tumblr. It is widely used to dismiss justifications for bad behavior, whether in serious political discussions, fandom debates, or everyday disagreements where someone's reasoning, however interesting, doesn't negate the consequences of their actions.