sentences:  The defense attorney for the Smiths said the injuries on the boy's body did not cause the boy's death and that the medical examiner did not perform tests that would have cleared his clients.During the trial, the defense attorney pointed out that there was no DNA evidence to prove the boy was locked inside the wooden box as the prosecution claimed.The defense also said the closet that prosecutors accused the parents of locking the boy in had no wall to prevent him from going into his bedroom, because his father had been renovating the house.