This combination of undated file photos shows, from left, Krystle Campbell, 29, Lu Lingzi, a Boston University graduate student from China, and Martin Richard, 8, all who were killed in the bombings near the finish line of the Boston Marathon on April 15, 2013, in Boston. Prosecutors rested their case Monday, March 30, 2015, against Boston Marathon bomber Dzhokhar Tsarnaev, after jurors in his federal death penalty trial saw gruesome autopsy photos and heard a medical examiner describe the devastating injuries suffered by the three people who died in the 2013 terror attack. (AP Photo/File)
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