The Boulder Valley School District received two threats this week; both targeted minority groups.
The student, who was arrested Wednesday, was picked up at the Arapahoe Ridge High School campus. He scribbled racial comments about Hispanics on a lunch room table.
"It said, 'I'm killing Mexicans on Friday,'" Commander Rick Brough with the Boulder County Sheriff's Department said.
The student was charged with ethnic intimidation, a class 1 misdemeanor. If he is charged as an adult, the boy could face up to 18 months in jail and a $5,000 fine.
"I think we have to look at what this was. And it was a student that got bored and was just being stupid," Brough said.
Students at Boulder High School learned about the threat at their school on Monday. An announcement was made over the loud speaker during seventh period classes.
"It was just talking about the threat. It didn't have any details of what exactly was in it. Just that it was racial," said Ellen Arkfeld, a student.
Administrators discovered the threat at Boulder High School in a boy's bathroom. It was scribbled on a stall door.
"It threatened violence against African American students and staff," said Briggs Gamblin, communications director for the Boulder Valley School District.
Administrators believe the bathroom stall threat is an isolated situation. Investigators are looking into whether the Arapahoe Ridge incident was a copycat situation.
"It's a reprehensible message. It's a message that has no place in our district and it will not be tolerated," Gamblin said.
Classes will go on as usual Friday. If students or their parents are concerned, they can contact the school district.
Students are rallying against the hate. They're forming a "Unity Day" to preach peace. It will start Friday and continue through next week.
(KUSA-TV © 2010 Multimedia Holdings Corporation)