Ex. Anthrax guitarist Dan Spitz and wife Candi are calling it quits.   LAKE WORTH — Anthrax guitarist Dan Spitz and his socialite wife are filing for divorce — three months to the day after his arrest at his Lake Worth in a domestic violence incident. The charges stemming from the Christmas eve fight were eventually dropped, but wife Candi says she and the heavy metal axman are calling it quits after nine years[…]