Claire McCaskill en Suspected poison mailed to senator <p><span id="_oneup" style="font-size: 11px;">Authorities aren't saying whether they have a suspect in the mailing of what's believed to be poisonous ricin to Sen. <font color="red">Roger</font>&nbsp;<font color="red">Wicker</font> of Mississippi.</span></p><p><span id="_oneup" style="font-size: 11px;">But a fellow senator is commenting. Missouri Sen. Claire McCaskill says the person believed to have mailed the envelope writes a lot of letters to lawmakers.</span></p> Wed, 17 Apr 2013 12:59:37 +0000 Associated Press 62446 at Suspected poison mailed to senator