[ Law & Ethics ] Open Question : Can the cops help me with a person posting a video on the internet that I don’t want to be posted or can I do something else?

Okay so I’m trying to help out a friend he Skyped with this woman that he’s never met before and he had phone or video sex with her whatever you want to call it on Skype and she recorded the video and threatened to post it to all his friends on Facebook or on YouTube…