Herakles became a strong teenager. He learned to use weapons and to drive a chariot. One day he killed his music teacher Linus because the man had tried to whip him. Herakles was charged with murder, but said he had acted in self defense. He was freed. People feared him though, so he was sent far out of town to work on a farm. Herakles became stronger with the hard work. He was seven feet tall. He was eighteen when he left the farm.