Case File: Argus vs. Hermes
Case Description: Complainant (Argus) accuses Defendant (Hermes) of murder. When Hera caught Zeus cheating on her with a nymph named Io, Zeus turned Io into a white cow to try to fool his wife. Hera was used to Zeus's tricks, though, and demanded the "cow" as a gift, placing the unfortunate Argus as the guard. Zeus then sent Hermes to free Io, and the messenger of the gods lulled Argus to sleep with his lyre, then chopped off the giant's head.
Case Status: Case dismissed. Zeus told Hermes to do it, so it's not like we could do anything about what happened. To further punish Io, Hera sent a gadfly to sting her as she wandered the earth as a cow. The queen of the gods also honored Argus by placing his eyes on the tail of the peacock, her sacred animal.