The accused: John, the intern who shall not be named.

Confession:

John: "I did not eat the donut! I swear on my honor as a professional... or at least, on my honor as a non-intern."

Sarah: "Don't look at me, I'm a vegan."

Bob: "I'm just here for the free coffee."

Further investigation revealed that John was, in fact, the culprit.

Consequences:

John: "I'm fired!"

CEO: "Good riddance."