Facebook, Google and Twitter are being sued by the families of three victims slain in the mass shooting at an Orlando nightclub for allegedly providing “material support” to the Islamic State. The lawsuit, first reported by Fox News, was filed Monday in federal court in the eastern district of Michigan on behalf of the families of Tevin Crosby, Javier Jorge-Reyes and Juan Ramon Guerrero. The lawsuit is the latest to target popular Internet services for making it too easy for …