Oregon Bomb Plot: High School Student Accused Of Attempted Murder, Prompts Police To Search School

Pipe bombs, Molotov cocktails, a Drano bomb and a napalm bomb accompanying a meticulous checklist and timeline for a plotted attack are the items bomb investigators found at the home of 17-year-old Grant Acord.

Police said that the teen was arrested late Thursday at his home when investigators followed a tip that Acord was planning to detonate bombs at his school in an attack deliberatly modeled after the Columbine shooting.

Acord will be tried as an adult for six counts of manufacturing and possessing a destructive device after police found six explosives in a secret compartment under his bedroom floor, NBC News reported.

Acord was a West Albany High School student, which is located in Albany, Oregon. Police searched the school Thursday evening following the arrest, but found no explosives.

Oregon State Police plan a more extensive search of the school before students return Tuesday using a canine bomb-detecting unit, Reuters reported.

Benton County District Attorney John Haroldson said Acord will also be charged with aggravated murder and will be arraigned Tuesday in Benton County Circuit Court , ABC News reported.

"The charge of attempted aggravated murder requires that we prove that a substantial step was taken toward the completion of the crime," he said. "In this case, we would be relying upon evidence of plan. Diagrams, checklists, a plan to use explosive devices and firearms to carry out a plan specifically modeled after the Columbine shootings."

According to reports, Acord chose his school to carry out the attack because it was a "target-rich environment." Haroldson declined to comment on the specific day the teen intended to carry out his plan, but noted that there was a chance that it could've happened at any moment.

"That said there were also some indications that it could happen at any time, too," he said. "So you have -- A -- the methodical planning and then -- B -- I suppose he could get really excited about it and go early."

Police said it does not appear as though Acord was targetting a specific person or group.

"This is beyond a kid playing with a couple of cherry bombs. It was serious enough to warrant calling out the bomb squad," Albany police Capt. Eric Carter said.