Capo Bastone or "Sotto Capo", known as the "Underboss" is second in command to the Capo Crimini. (It. Sottocapo) is a rank in the American and Italian Mafia. The Underboss is usually a family member, such as a son, that will take over the family if the don is sick or killed. In the American mafia, it's the second highest rank a member can achieve, the highest being boss. The Italian Mafia has an additional rank above boss known as the capo di tutti capi (this position was filled in the U.S. by S… (More on Underboss)