Unlike with the Boston Marathon bomber, police have a suspect in mind as they try to determine who mailed a letter to Sen. Roger Wicker that tested positive for poisonous ricin, a Senate colleague said.
As Congress readies for a drawn-out immigration debate, an expanding network of Republican fundraisers is pressing for a path to legal status for millions of immigrants living in the United States illegally.
Key measures of New York's tough new gun law are set to kick in, with owners of guns now reclassified as assault weapons required to register the firearms and new limits on the number of bullets allowed in magazines.
Congressional investigators say pharmacy boards in nearly all 50 states lack the information and expertise to oversee specialty pharmacies like the one that triggered a deadly meningitis outbreak last year.
Dylan Quick also told an investigator that he had researched mass stabbings on his home computer about a week before the attack at Lone Star College in Cypress, according to a search warrant affidavit.