As far as I'm aware, his family (or most of his family) weren't involved in his terrorists act. They disowned him even before 9/11.
Quote:
Disowned by Family Patriarch
This week, in Saudi Arabia, the patriarch of the bin Laden family, Sheikh Abdullah bin Laden, Osama's uncle, publicly denounced him.
"All the family members condemn all violent and terrorist acts, even if Osama is behind them," the uncle told reporters.
"They condemn the act. They condemn terrorism and they disavow any connections to Osama," said Adfil Najam, a professor of international studies at Boston University said.
It is not the first time Osama bin Laden's relatives have distanced themselves from their notorious family member. His relatives also denounced him after the 1998 terrorist attacks on U.S. embassies in Africa — attacks for which Osama bin Laden has been indicted in U.S. federal court.
It's a very horrible way to die no matter who you are.