PHENIX CITY, Ala. (AP) — An Alabama teenager teen who described himself as a white supremacist made journal entries about a plot to bomb classmates three days after the Newtown school massacre and began building small homemade explosives, a sheriff said Monday.

Russell County Sheriff Heath Taylor told The Associated Press that he believed the shooting at Sandy Hook Elementary was a factor because the first date in the boy’s journal describing the plan was Dec. 17 — three days after the Connecticut killings.