Dutchtown, La. ? Two high school students were arrested and accused of creating an elaborate plan to re-create the bloody Columbine high school massacre on its five-year anniversary in April.

Christopher Levins, 17, of Prairieville, and Adam Sinclair, 19, of Geismar, were each booked Monday with one count of terrorizing — a felony punishable with up to 15 years in prison, Ascension Parish Sheriff Jeff Wiley said.

“This is not just a case of kids just talking to be cool,” Wiley said. “These students had plans all worked out.”

The alleged plot was discovered after an anonymous call made Friday to Dutchtown High School indicated some kind of armed disturbance was being planned. Levins and Sinclair admitted some of the planning but called it a “fantasy” and a joke, and said they never really planned to go through with it, Lt. Kevin Hanna said.

Deputies said they found drawings and papers about the April 20, 1999, shootings at Columbine High in Littleton, Colo. Eric Harris and Dylan Klebold killed 13 people before committing suicide. Twenty-three others were wounded.

Poems by the pair about being bullied and numerous writings in which Levins, a senior, and Sinclair, a sophomore, refer to themselves as “The Trenchcoat Mafia” were also found, authorities said. Harris and Klebold had been said to belong to a loosely knit group with that name at Columbine, though investigators later said they were not part of it.

“We found one drawing that had the student blowing the brains out of a particular teacher,” Wiley said. Another depicted Levins and Sinclair on a school roof celebrating around dead bodies hanging out of windows, officers said.

“Apparently, they were planning to wake up at 4:20 a.m. on April 20 of this year to do this,” Maj. Tony Bacala said.

Authorities said said no weapons were found, although detectives did find evidence that Levins and Sinclair had obtained information on buying shotguns and rifles.

The investigation is continuing, Wiley said. Neither student has a criminal record, and school officials said neither was a discipline problem.