leslie abramson wrapped her arms around their shoulders. leslie did was deliberate and calculated. >> the prosecutor steeled herself, determined not to let the optics distract the jury. >> based upon this evidence it will become apparent that this murder was unlawful, unjustified, and wholly premeditated. >> in basic english, the prosecution's case was this. just the facts, ma'am. >> lyle and erik driving down to san diego two days before the murders to buy shotguns and with a stolen i.d. >> why are you using fake i.d.? because you know you will use the gun to be doing something you should not be doing. that's evidence of intent. >> after the murders, prosecution showed the brothers lied to the police for months starting from the very moment that lyle called 911. >> someone killed my parents. >> they did it all for the family fortune the state said. lyle and erik search for the will just days after their parents murders and went on a multistate spending spree. >> they were aggressive about spending money as soon as possible which i thought w