The double-shooting at Independence High School in Glendale is the seventh reported school shooting in the United States this year.
RELATED: 2 teenagers shot at a Glendale high school
These incidents, compiled by the support fund, Everytown for Gun Safety, are media-reported incidents of shootings on school campuses, regardless of injuries.
For a full breakdown of 2015's shootings on school campuses, as compiled by Everytown for Gun Safety, take a look at the charts below.
