A gunman opened fire on the campus of a community college in Roseburg, Oregon, on Thursday, killing multiple people and injuring many more. Details about the scale of the carnage are still trickling out, but according to Everytown for Gun Safety, a group pushing for reforms to reduce gun violence, it was the 45th shooting at a school in 2015.
Everytown was formed in the wake of the mass shooting at Sandy Hook Elementary in Newtown, Connecticut, in which 27 people were killed, including 20 young children, six faculty members and the shooter. There have been 142 shootings at schools since December 14, 2012, the date of that incident.
The graphics above shows just how frequently gun violence affects students of all ages, whether directly or indirectly. The incidents include targeted shootings, self-inflicted gunshots and other discharges that didn't strike individuals. The relative lull in June, July and August could be explained by the fact that K-12 schools, most commonly the site of these shootings, are generally on summer break during those months.