anybody . " Morell also charged GOP nominee Donald Trump has become an " unwitting agent of the Russian Federation , and president Vladimir Putin . " He saw that Donald Trump wanted to be complimented .
Islamic State claimed responsibility for the attack after it took place . Mateen himself “ claimed allegiance to the Islamic State and praised the Boston Marathon bombers , ” before being killed by police on the scene , the New York Times reported at the time . In December 2015 , President Obama ignored FBI - procured evidence that the terrorist attack in San Bernardino , Calif. , was an Islamic terrorist operation and ordered federal officials to misleadcontact.prevarication.correspondencethe public about the true nature of the assault . Although the FBI knew immediately that the mass - casualty event was a Muslim terrorist attack , Obama and FBI Director James Comey reportedly clashed over why Syed Rizwan Farook and Tashfeen Malik , opened fire Farook 's municipal government workmates , leaving 14 dead . They left a trail of social media evidence that went unused before the attack .