The FBI has declassified 1,500 documents detailing how Sandy Hook shooter Adam Lanza was actually on the bureau’s payroll.

The documents include reports from FBI agents who interviewed people about Lanza, with one stating that he had tried to hack into the government’s computer system.

The shooters mother, Nancy Lanza, claims that FBI agents ‘realized Lanza’s potential’ and offered him a job at the agency before the shooting.

Time.com reports: The documents offer a window into the early days of the investigation, as agents chased false leads and gathered evidence of Lanza’s isolation. A year after the massacre, state police released a final investigative document that concluded Lanza was obsessed with firearms, death and mass shootings, but that the motive may never be known.

One person told an FBI agent that Lanza’s mother, Nancy, had become concerned about him a month before the shooting because he had become a “shut in” who hadn’t…