Minnesota's school security failure and pathway to radicalization probed after shooting

The deadly shooting at a Minnesota Catholic school should prompt school security review and an investigation into how the transgender-identifying attacker was radicalized, experts say. 

The attack, which left two students dead and more than a dozen injured after Robin Westman, a transgender-identifying 23-year-old, targeted students at Annunciation Catholic School in Minneapolis while they were attending a back-to-school Mass at the church of the same name. Westman had previously posted disturbing and incoherent content on social media, including images of weapons with "Kill Donald Trump" and "Nuke India" written on them...