Al-Khateeb is representing the shooter’s 40-year-old uncle, Asa'ad Ibrahim Asaad Abdulazeez, who U.S. law enforcement officials believe is “radical.” The gunman's uncle is a naturalized U.S. citizen born in Kuwait, and is a business owner who moved to Jordan in 2010 to help take care of his parents.
He has been detained in Jordan since the day after the attack but hasn't been charged.
U.S. officials believe the uncle may have influenced his nephew during a recent extended visit between April and November last year.
“He was depressed in the USA, that's why he came to Jordan to rest,” al-Khateeb said. “He lived with his uncle, worked with him that's all. He was against terrorism and against [ISIS] … he was far from extremism. He is a normal person and like any other person he was concerned with his family and work."
He added that the family described the shooter’s life in the U.S. was “very simple and normal.”
Update: Abdul-Qader al-Khateeb was the court-appointed attorney for Mohammad Youssef Abdulazeez's uncle at the time of the original publication of this report. The uncle, Asa'ad Ibrahim Asaad Abdulazeez, has since been released by Jordanian authorities, and al-Khateeb no longer represents him. The Abdulazeez family based in the United States said the attorney does not speak for the family and does not represent the family's views.
Alastair Jamieson reported from London.
Alastair Jamieson is a London-based reporter, editor and homepage producer for NBC News.