Police who searched the home of a 15-year-old boy arrested in last week's shooting of four students at a rural Washington state high school found guns, ammunition and what was described as a "practice Molotov cocktail."
Court documents said officers also found a notebook that had a "manifesto" but no details were provided. Officers also found a school yearbook with some faces marked with the letter X. The documents said "X=Kill" without providing additional details.
Another notebook had a list of chemicals.
The court documents were made public Friday but did not start circulating in the media until Monday.
Last Wednesday's shootings left one student dead and three wounded at the Freeman High School in the town of Rockford in eastern Washington state – just south of Spokane.
Suspect Caleb Sharpe is in custody pending a Sept. 26 court appearance. He was a sophomore at the school.
Students are returning to Freeman High School for the first time after a shooting last week left one student dead and three wounded.
Classes resumed at the rural high school on Monday morning.
Freeman School District Superintendent Randy Russell says there will be a counselor in every classroom in the school district Monday. Russell says retired teachers will return to school to offer support and help.
Russell also encouraged parents to accompany their students to school and to remain as long as they like.