An Oklahoma man has pleaded not guilty to charges that he mailed an inoperable homemade bomb nearly a year ago to Maricopa County Sheriff Joe Arpaio.

Gregory Lynn Shrader, 55, of Jay, Okla., entered the not guilty plea on Friday in federal court in Phoenix.

Investigators say the bomb was discovered in April at mail collection-box unit in Flagstaff and was made of smokeless powder, wires, a battery and a pressure-release switch attached to its lid.

Authorities eventually determined the bomb was inoperable, though black power inside the parcel could have exploded or ignited in a flash fire.

Police disabled the bomb.

Authorities say a woman told them that she drove with Shrader to northern Arizona and saw him place the parcel into the mail box wearing surgical-type gloves.

(0) comments

Welcome to the discussion.

Keep it Clean. Please avoid obscene, vulgar, lewd, racist or sexually-oriented language.
PLEASE TURN OFF YOUR CAPS LOCK.
Don't Threaten. Threats of harming another person will not be tolerated.
Be Truthful. Don't knowingly lie about anyone or anything.
Be Nice. No racism, sexism or any sort of -ism that is degrading to another person.
Be Proactive. Use the 'Report' link on each comment to let us know of abusive posts.
Share with Us. We'd love to hear eyewitness accounts, the history behind an article.