Police also searched the homes of students whose names came up during the probe, Aurora police spokeswoman Fran Gomez said. As of Sunday, there had been 447 calls - 67 of them classified as involving actual threats, CBI program manager Mikki Sirmans said. Call volume has risen slightly in recent days. On Thursday, classes were dismissed early at Cherry Hills Community Church's school in Highlands Ranch after messages were scrawled in two classrooms. There were little notes that were left that caused us to be concerned.
Threats hit other states as well.
In Port Edwards, Wis., a bomblike device with a propane tank and timer was found near the doors of a high school. The Associated Press contributed to this report. The Denver Post. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.