Ricin found in suspect's studio, FBI says
Ricin found in suspect's studio, FBI says Traces of ricin were found on items recovered from the former martial arts studio of a man charged in connection with mailing the toxin to President Barack Obama, according to an FBI affidavit.
Ricin found in studio of US man charged Updated: 14:20, Wednesday May 1, 2013 Traces of ricin have been found in the martial arts studio of a US man charged in a plot to send poisoned letters to US President Barack Obama and other public officials, the FBI says.