Hes much more likely to get caught due to the ego boost hes likely received from all the positive attention. Imagine preplanning to do the unthinkable – murder someone, making sure to take all the steps to do it quickly, cleanly, and make a getaway unidentified and then you see so many people basically celebrating you for it. Now he might feel emboldened, or at very least more inclined to disclose it to close confidants and take credit.