speech. and a man with decades of service from nixon to bush has passed away. reaction to the death of lawrence eagleburger. this is live from the nation's capitol starting right now. >> prosecutor in the casey anthony trial said they expect to reach the halfway point of the case today. forensic experts are on the stand today. one may have dealt the defense team a blow. julie banderas is monitoring all of the develop ams the trial. >> you are looking live at mike vin cent who is the assistance supervisor from the orange county sheriff's department. jurors are getting a forensic science lesson. today will be a half day at court and it will end at around 1:00. the first witness called earlier to the stand was f.b.i. forensic examiner karen low who testified to