Deadly Poison Found in Letter Sent to US Senator

U.S. Senator Roger Wicker
U.S. Senator Roger Wicker

Congressional officials say a letter sent to Republican U.S. Senator Roger Wicker of Mississippi has tested positive for the deadly poison ricin.

The letter was found at a facility that handles mail going to the U.S. Capitol. They say it tested positive for ricin in two separate tests.
An investigation is under way.
Ricin is highly poisonous and a tiny drop can kill an adult.