With a week left before the first day of school in the Clark County School District, Henderson police arrested a 14-year-old boy on allegations of sending threats and comments referring to the 1999 Columbine school shooting via the Internet to another youth.

The teen, who was not identified, also had surveillance footage of the Columbine shooting on his home computer, said officer Todd Rasmussen, spokesman for the Henderson police.

The teen titled his MySpace.com Web page "R.I.P. Eric Harris and Dylan Klebold," Rasmussen said.

MySpace.com is a social networking Web site that gives users access to blogs, profiles, photos, videos and an internal e-mail system.

Eric Harris and Dylan Klebold were the two teens who went on a shooting rampage at Columbine High School in Colorado in 1999, killing 12 students and a teacher and wounding more than 20 people. Harris and Klebold committed suicide after the shooting.

"The detectives took this seriously because in their minds this wasn't a hoax," Rasmussen said. "This was a very early stage in the thought process of a disturbed child that needed help. So immediate action was taken."

Police arrested the teen about 9:30 p.m. Wednesday at his Henderson home and took him to the Clark County Juvenile Detention Center, where he was booked on charges of making threats or conveying false information concerning acts of terrorism, Rasmussen said.

Authorities were alerted to the threats about 2 p.m. Wednesday when the relative of a teen who received a message from the 14-year-old called the police, Rasmussen said.

The 14-year-old sent a message from his MySpace.com account that stated, " 'Would you be down for some Columbine-like (expletive),' " Rasmussen said.

" 'Like what we talking?' " the other youth asked, Rasmussen said.

" 'I can't talk to you online about it. But how can I hit you up offline,' " the 14-year-old wrote back, Rasmussen said.

The police weren't aware exactly when the message was sent or whether the 14-year-old sent it to other students, Rasmussen said.

The police went to the 14-year-old's house and searched his home computer. The youth was at the house and was wearing a shirt that had the words "Kill Hate Destroy" printed on it, Rasmussen said.

Authorities found video footage of the Columbine massacre on the 14-year-old's computer, he said. The footage, taken by Columbine school surveillance cameras, showed Klebold and Harris standing in the school's cafeteria holding guns.

Similar surveillance footage of the Columbine shooting, including video of the two teens shooting students, is easily found on the Internet.

Rasmussen said detectives learned that in previous school years the boy had been suspended from school for prior incidents that included fighting, threatening other students and using slurs. They searched his home "and no weapons were recovered," police said.

Police said the teen had access to weapons in the past, but did not elaborate.

"He displayed tendencies that were parallel to those of other suspects in other school shootings," Rasmussen said.

No specific school was identified in the threats, police said.

Edward Goldman, assistant superintendent for education services for the Clark County School District, wouldn't comment on where the 14-year-old is going to attend school during the next school year or the student's previous school history. But he said the school district has a zero tolerance policy for students who make threats.

"Schools are required to recommend expulsion for any student who makes a threat," he said.

In March 2004, police arrested a 13-year-old Fremont Middle School student after he made angry 911 calls and told operators that he was going to kill all the students. The youth in that case, who was not identified, was held on four counts of making terrorist threats.

In April 2001, police arrested and seized guns from a 14-year-old boy who was alleged to have been plotting a Columbine-like shooting spree at a southeast valley middle school.