Tonight, we remember Officer Sean Collier.
Thousands turned out at the Massachusetts Institute of Technology today to honor the memory of the 27 year-old campus police officer who was known to love his job, and was driven to helping others.
Investigators say Sean Collier was killed last Thursday night by the suspected marathon bombers as he was sitting in his patrol car. In a moving ceremony, his younger brother remembered Sean as someone who loved country music, and was born to be a police officer. FULL POST
If Tamerlan Tsarnaev was influenced to become a radical jihadist, he very well may have shared those thoughts and views with his younger brother. But if that's the case, how much control did he have over Dzhokhar?
Outfront tonight, Steven Hassan is an expert on destructive mind control groups and the author of "Freedom of Mind: Helping Loved Ones Leave Controlling People, Cults and Beliefs."
Tonight we are learning more about the life the Tsarnaev brothers were living before their alleged attack.
Photographs of the older brother Tamerlan show him wearing stylish clothes and driving an expensive car – in other words, living the lavish lifestyle of a talented boxer.
But that may not have been the case, as it now appears Tsarnaev was strapped for cash, relying on welfare up until last year. CNN's David Mattingly is OutFront with the latest.
Tamerlan Tsarnaev's name was entered into U.S. intelligence databases back in 2011, when Russia raised concerns about his activities to the federal government.
But what exactly were the concerns, and what information did Russia actually share with the U.S.? Republican Senator Jim Risch, who serves on the Senate Intelligence Committee, is OutFront tonight.
Tough questions are being asked about whether a failure to share intelligence contributed to the deadly marathon bombings in Boston. CNN is learning that Tamerlan Tsarnaev's name was on at least two government databases, but his name never made it to an official watch list. CNN's Joe Johns is OutFront with the latest.