A woman drove six miles to the Valley County Sheriff's Office in Cascade to give them, what she thought was some kind of old antique trophy from the war.  What she was really driving around was a LIVE Mark 2 grenade.  When the Sheriff Department realized what they were dealing with they immediately cleared out and locked down the area.  They also put out a Code Red Alert to the public while attempting to defuse things with a bomb squad.

According to the Idaho Statesman, the 366th Explosive Ordnance Disposal Squadron from Mountain Home Air Force Base was dispatched and arrived just before 3 o'clock.  After a little more than an hour, the grenade was safely detonated.

The woman's name is Shirley Coughlin and she came into possession of the grenade when her brother had died and left her with all of his belongings.  Valley County Sheriff’s Capt. Jason Speer said...

Mrs. Coughlin was completely mortified that it was real. She apologized profusely.  She thought it was totally safe, like a trophy or wall mount or mantelpiece.

Coughlin's brother's trailer was combed through by investigators as a precaution to make sure there were no more explosives.  Authorities found none.