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News to know

Investigators have identified a possible suspect in the Boston Marathon bombings, CNN reports. The male suspect has been seen in videos wearing a backwards white baseball cap, light-colored sweatshirt and black jacket. Authorities have said they have made "significant progress" in the investigation but have not made any arrests despite earlier reports.

Quote of note

"To see a wrong and not expose it, is to become a silent partner to its continuance... I am KC and I approve this message." - Message of letters addressed to President Obama and Sen. Roger Wicker of Mississippi, which tested positive for the poison ricin, according to the Associated Press.

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