The mosques attended by the gunman in the Chattanooga, Tennessee shooting, Boston Marathon bombers and 9/11 hijackers are affiliated with the same Islamic group, according to the New York Post.

The North American Islamic Trust (NAIT) is the trustee of the Islamic Society of Greater Chattanooga, to which Chattanooga suspect Mohammad Youssef Abdulazeez belonged, in addition to the Boston and Virginia mosques frequented by the other terrorists.

Abdulazeez and his family were members of the Islamic Society, and according to his friends, he regularly prayed at the Islamic Society in the past months leading up to the Chattanooga shooting.

Yet federal investigators have dismissed any possibility that the Tennessee mosque was a source of radicalization or support for the Chattanooga terrorist, Mohammad Youssef Abdulazeez.

Records show that NAIT holds title to more than 300 mosques and has helped finance more than 500 Islamic centers in America. Imams insist that none of the mosques preach hate.

However, in 2007, the U.S. Justice Department named NAIT as an unindicted co-conspirator in the Holy Land Foundation case, which was accused of pouring in millions of dollars to the Hamas terror group.

NAIT is a member of the U.S. Muslim Brotherhood, along with NAIT’s parent, the Islamic Society of North America.

When NAIT tried several times but failed to request the government to remove its name from the co-conspirators’ list, a judge said there was “ample evidence” about the ties among NAIT, Hamas and the Muslim Brotherhood, which the report claims is a jihadist movement.

In 2009, when Islamic Society leaders were raising money from Chattanooga Muslims for construction of their new mosque, they called upon major Muslim Brotherhood figures — like Yusuf al-Qaradawi, who once called on Muslims to kill U.S. soldiers in Iraq.