School authorities in eastern Washington have discovered that a 10 year old student was plotting to kill another student at his school.

The LA Times reported that authorities found a gun and a knife in a backpack of a student at Colville Elementary School. Two fifth grade boys were planning to use the weapons to kill another student outside school "because she was really annoying."

The boys confessed their plans to harm six other students at the school, reported The LA Times.

Stevens County prosecuting attorney Timothy Rasmussen said to The LA Times that the 10 and 11 year olds should be criminally charged for conspiracy to commit first degree murder as well as witness tampering.

"According to a court affidavit made public this week, the incident came to light shortly before 8 a.m. on Feb. 7, when a fourth-grader told a teacher he had seen an 11-year-old boy with a knife.

The teacher searched that boy's backpack and that of his 10-year-old friend and found the weapons in the friend's backpack. They included a knife with a 3¼-inch blade, a .45-caliber Remington 1911 semiautomatic handgun and an ammunition clip," reported The LA Times.

When the boys were questioned about the weapons they admitted to the plot. The 11-year-old boy said to detectives, "I was going to kill her with the knife and [the other boy] was supposed to use the gun to keep anyone from trying to stop me or mess up our plan," reported The LA Times.

KTVB reported that according to court documents the younger boy was in a "short term dating relationship" with the girl they planned to kill. They said they wanted to kill her because "she 's rude and always made fun of me and my friends."

CNN reported that the boys plan  was to stabe the girl with a 3.25 inch knife while the other boy would deter people with a .45 caliber Remington 1911 semi-automatic handgun.

According to state law children that are younger than 8 are considered not capable of commiting criminal acts.

"For children between the ages of 8 and 12, the law presumes they are similarly incapable but calls for the court to hold a hearing to determine whether they had the capacity to commit a crime. That hearing is set for Feb. 20," reported The LA Times.