prosecuting doug stewart fell to baby-face doug mcdonna. seated at the defense table, doug stewart wearing casual guy sweaters and sweater vests. courtroom demeanor, what d you see, john? he was very good at kinda presenting himself as kinda the all-american guy. it was very bizarre. cause we would go into chambers, he would talk out loud like he was one of the guys. you re on trial for murdering your wife. none of this seemed to affect him one bit. reporter: as the prosecutor began his case, his opening witnesses focused on april 26th, 2010, the day venus vanished. state trooper aaron steensma, first on the scene, testified that he believed he was looking at a crime as soon as he talked to venus parents. i pulled into the driveway and i was met by a female who was hysterical and crying. and what did you do next? she told me that he took her. he took her. he took her. reporter: early on, mcdonough wanted the jury to meet venus parents, to see them as the stable decent
were shown to the jury. other photos showed how lindsey lou was struck. surveillance video shows dzhokhar walking away from the bomb. unclear is whether he will testify in his own defense. many legal experts say that s doubtful, too risky, putting the entire defense on his courtroom demeanor. a guy like tsarnaev if he smirks. if he looks the wrong way it s all done. reporter: all the major steps in preparing for the bombing were taken by his older brother tamerlan. it appears the defense will only take a few days to present their case and the jury could begin deliberating in a few days. if the verdict is guilty as it almost certainly will be then the same jury will hear another
unclear is whether he will testify in his own defense. many legal experts say that s doubtful, too risky, putting the entire defense on his courtroom demeanor. a guy like tsarnaev, if he smirks. if he looks the wrong way it s all done. reporter: all the major steps in preparing for the bombing were taken by his older brother tamerlan. it appears the defense will only take a few days to present their case and the jury could begin deliberating in a few days. if the verdict is guilty as it almost certainly will be, then the same jury will hear another trial on the penalty, life without parole or death. the. thanks, pete. we ll be right back. believes in more. more to see. more to feel.