What could have really happened?

We think that the family that was living in the Mary Celeste, wanted to live in Italy for so long, and they has a house there. They thought that wasfunny to make a joke; and they pretent live in boat for a short time and then runaway to they house in Italy because the people who weres interested with the history of the Mary Celeste think that the family was dead, drown or disapeared.
People who investigated the history, didn't