One of the suspects in the Boston Marathon bombing is dead, the other is on the loose, and we've got all of Friday's latest developments in the story, including the identities of the two Russian brothers believed responsible for the deadly attack.

1. Search For The Suspects

The two suspects in the bombing were identified after they fatally shot a Massachusetts Institute of Technology police officer at around 10:30 p.m. ET Thursday, robbed a 7-11, and carja