According to eyewitnesses, it's alleged that John, the CEO, ate the last donut from the break room fridge. Again.
Further investigation revealed that John's alibi for the time of the donut's disappearance was "I was just... uh... reorganizing the stapler drawer."
A team of highly-trained, donut-expert detectives was called in to crack the case, but they were unable to find any conclusive evidence.
As a result, John was forced to eat a plain cracker as punishment.