Recent school shooters appear to have crossed paths in online extremist groups

Report reveals that teen who killed one student in Nashville area interacted with Wisconsin shooter who killed two

Two teenagers who carried out deadly shootings before killing themselves at their respective high schools in attacks roughly a month apart from each other appear to have crossed paths online, according to a new joint report from ProPublica and Wisconsin Watch.

The first shooting took place on 16 December at the Abundant Life Christian school in Madison, Wisconsin. Two people - a teacher and a 14-year-old student - were killed by the shooter, 15-year-old Natalie Rupnow, before she killed herself.