Updated: 12/13/2013 7:38 AM
Created: 12/12/2013 9:04 PM KSTP.com
By: Jennie Olson
A man suspected of sending a dangerous white powder to the Pine County Courthouse is behind bars.
On Tuesday, Nov. 19, six envelopes containing a white powder substance were mailed to the courthouse, causing an evacuation.
Sheriff Robin Cole tells KSTP that 45-year-old Johnnie Earl Long was arrested for having weapons of mass destruction and making terroristic threats. Officials say the incident was linked to an already on-going investigation regarding homemade devices that were made to look like explosives.
The sheriff said the powder is a micro-organism that can harm people. The envelopes had a bacterial agent mixed in with a household powder.
Deputies were still searching Long's house Thursday morning.
Long is facing possibly charges for terroristic threats.