Well if that's the case then I'm wrong. Have they offered a motive yet? The last I'd heard about this is that they were all bound with throats slit and that nothing had been taken and that they were looking into threats against them made on an extremist web site.
If the case (and that is a big IF) is not related to our Muslim pals then it still does not fit the MO of a robbery motive. There was too little taken and way too much ceremony involved in the murders. It looks like the motive was murder and a little something was taken (rather than the motive of robbery and the killings followed to get rid of witnesses).
From FoxNews.com "Authorities said thousands of dollars were withdrawn from Armanious' bank account using his ATM card in the days after the slayings."