Mahin Khan's tutor shared new details about the alleged Arizona terrorist accused of making a pressure cooker bomb and possibly planning an attack on an air force center.
Auguste El-Kareh tutored Khan for about three months a couple years ago before he told Khan's mother that she was wasting her money.
"He doesn't have the ability of learning anything," said El-Kareh. "So I told her she should stop."
El-Kareh tutored Khan in math and physics, but explained the 18-year-old had the mentality of a 6-year-old.
Khan was charged with terrorism, conspiracy to commit terrorism and conspiracy to commit misconduct involving weapons.
His tutor was shocked when he saw Khan's emails explaining that he wanted to back the Islamic State group and was looking to carry out an attack.
"How can a boy who is so inept reach that point is incomprehensible to me," explained El-Kareh. "He would not have been able to do that without some coaching from somebody on the internet."
His tutor has known Khan for the past couple years and says Khan was respectful, peaceful and never said anything radical to him.
Over the last week we spoke with four former classmates of Khan, who all wanted to remain anonymous, that have experienced a different side of him.
One classmate said Khan threatened to kill him. Another recalled a time when Khan expressed he wanted to grow up to kill the military and the Marines.
Khan pleaded not guilty to the charges Tuesday. El-Kareh says Khan's family is suppose to release a statement Friday afternoon.