Calls for crackdown on antisocial behaviour.
The woman is said to have fled Germany after murdering her father.
If off medication, he is said to be extremely dangerous.
Twice married to Spanish women, he is accused of bigamy.
A police investigation focused on a squat in Cala Major in Palma.
The arrests were made on Monday.
Police investigation in Cala Major, Mallorca
There are at least six victims; police suspect that there are many more.
The yacht's owner is the CEO of a Russian military weapons company.