Seventeen-year-old Dylan Butler, a student at Perry ... The state investigation revealed Butler was “fascinated” by school shootings and “obsessed” with violence. “We can say that the shooter in this ...

The shooter's online activity before the attack is under thorough investigation in order to determine a motive.

Iowa Department of Public Safety commissioner says there was evidence of "copycat behavior" in the Jan. 4 Perry school ...

Police do not know from where Dylan Butler obtained the shotgun used in the Perry shooting but believe he took it "without ...