Swiss authorities arrested Roman at the request of the U.S. based on a warrant issued all the waaaay back in the olden times (aka 1978). Roman started running after he pleaded guilty to drugging a 13-year-old girl and having sex with her during a photo shoot at Jack Nicholson's house in 1977. Before he could be sentenced, Roman busted out of the US and has been living in France
This past July, Roman asked a California court to consider his request to throw the case out. The judge said he wouldn't even consider it if Roman didn't come to the U.S.
The victim, Samantha Geimer, has previously asked that all the charges be dropped, because everyone knowing about the details of that day causes harm to her, her husband and her children.
Roman is now being held by Swiss authorities and they are waiting on an official extradition request from the U.S.