hmmm... could this have anything to do with his son?
"The father of Orlando mass shooter Omar Mateen has longstanding connections to prominent Islamist groups in the U.S. ... Seddique Matin is listed as president of a then-new American Muslim Alliance (AMA) chapter in Fort Pierce. ... AMA's political activist wing, the American Muslim Political Coordinating Council (AMPCC), includes leading Islamist organizations in the U.S. including the Council on American-Islamic Relations (CAIR), the Muslim Public Affairs Council (MPAC), and the American Muslim Council (AMC).
AMA no longer exists as a registered nonprofit and it last filed tax returns in 2010. But the organization continues to maintain an active Facebook account. In its posts, the AMA refuses to consider any Islamist motivation for the attack and lays the blame for Omar Mateen's massacre which killed 49 people at the Pulse nightclub solely on the country's lax gun laws.
The organization has a history of working with radical Islamist groups and has issued statements in support of several terrorists later convicted in the U.S. The FBI cut off outreach communication with CAIR, for example, after uncovering evidence placing the organization and its leaders in a U.S.-based Hamas-support network.
Years after working with AMA and its Islamist allies, the senior Mateen, who hosts the Durand Jirga Show from California on the YouTube channel Payam-e-Afghan, has been reported to be an ideological supporter of the Taliban. He can be seen in one video declaring his candidacy for the Afghan presidency. In another video, Mateen can be seen praising the Afghan Taliban and referring to the terrorist group as "our warrior brothers," the Washington Post reports.
While little information is known about Seddique Mateen's work with the AMA, the 1997 newsletter shows the Orlando shooter's father has worked for years with some of the most visible and radical Islamists in the United States.
There is more, do read the whole thing.
By the way - I tried hard to find a picture of the father smiling. Would you believe the only ones I could find were of him in a uniform with the Afghan flag?