Kelli Jacobsen's defense attorney spent the day trying to put reasonable doubt in the minds of the jurors. Doubt that this little boy was killed by his nanny nearly two-years ago. Doctors blame abusive head trauma for Ryder Morrison's death. But at issue is what caused that trauma. Jacobsen has stuck to her story that Ryder fell off a small toy. Ryder's mother Tawney Johnson was called back to the stand Friday. She answered questions about details on how she cared for her child.