During a press conference Tuesday, President Obama said the terrorist responsible for the massacre at a gay nightclub in Orlando was inspired by propaganda produced by the Islamic State (also known as ISIS or ISIL).

Omar Mateen “took in extremist information and propaganda over the Internet,” according to Obama. The president then cited the Islamic State’s repeated calls to attack in the West, adding that Mateen “absorbed some of that and during his killing spree…pledged allegiance to ISIL.”