themselves. an actress from "the walking dead" and "the vampire diaries" is in federal custody accused of mailing ricin-laced letters to president obama and tipped off investigators blaming her husband for the letters but a law enforcement official tells cnn they believe it was rogers who sent the letters and the source said she did it, quote, because she was angry, unquote. might have been easier just to delete his unwatched episodes of "ncis" from the dvr, but maybe that's me. ed lavandera is live from dallas with more details on the arrest. ed, this is all pretty bizarre. and, of course, as bizarre as the case is, we're talking about a very deadly poison. >> a deadly poison, a serious situation, but a real life drama in this case. this is shannon rogers richardson that she goes by. she's also known as an actre trying to make her way and goes