If I was going to jump to conclusions I would guess daddy found out what darling daughter was doing and needs scapegoats for her actions. Afterall, his daughter would never do anything like this. She must have been coerced into the event under the influence of alcohol. He probably thought his daughter was a virgin. I'm guesing a threesome to fivesome is not her first time.
By going public, regardless of the result these girls will be harmed. People in their town know who went to the Bahamas for vacation. The word will spread. The girls will be labeled. It won't be pretty.