CNN CNN Newsroom With Carol Costello April 1, 2015 13:40:00
The prosecution spent weeks calling witnesses testifying in graphic detail about what they had experienced. very compelling. by contrast the defense calls a handful of people. very technical testimony. what are they doing? they're looking past the verdict phase and skipping ahead to the sentencing phase. >> reporter: the defense for dzhokhar tsarnaev starts with his own attorney admitting in opening statements it was him. it ends with his lawyers calling just four witnesses to the stand. key pieces of evidence presented by the prosecution are proof, the defense says of their theory that tamerl...