Omar, 31, was trained with al-Qaeda killers in his youth but turned his back on terrorism before September 11th.
And following the death of his father last year, Omar, speaking exclusively to The Sun in Qatar, said: “I loved him, he was my father.”
He added: “I didn’t agree with what he did – I only believe in peace – but that doesn’t mean I couldn’t love him as a father.”
Omar is bidding to land multi-billion dollar deals at the controversial Qatari contest.
The Saudi-born businessman is bidding for a string of engineering contracts including an underground rail service between stadiums in the capital city Doha.
He said: “We want to be involved in the Doha Metro and other high-speed rail projects in Qatar, as well as hydraulics and water treatments plants.
“There is a limited time frame for projects in Qatar. It’s all happening in the next 10 years, and we want to be involved as much as we can.
“We hope to be submitting proposal by the end of June.”