A January school shooting at Perry High School near Des Moines, Iowa, which left two dead and six injured, was “the product of significant preparation and planning,” by a lone shooter, a new report released by the Dallas County Attorney’s office found.

A law enforcement investigation report on a deadly shooting at a small-town Iowa high school in January reveals new details of the shooting, including that the teenage shooter attempted to livestream his actions.

The student gunman in a small-town Iowa school shooting in January in which two people were killed and several others injured was known to have a fascination with school shooters and exhibited a number of unreported “warning signs,

The shooter responsible for two deaths and multiple injuries at an Iowa high school earlier this year “likely displayed warning signs” according to a detailed report from state officials released Friday.