A nonprofit dedicated to combatting terrorist propaganda on Friday said it has new technology that can help social media companies better identify the type of posts and videos that investigators believe helped drive Omar Mateen to shoot 102 people at a gay nightclub in Orlando, Fla., on Sunday.

The Counter Extremism Project, which was founded by a group of former world leaders and diplomats, has taken Twitter, Facebook and Google to task for not doing enough to prevent groups such as the self-proclaimed Islamic State from exploiting their platforms to recruit adherents, incite lone-wolf attacks, raise money and distribute their barbaric videos.