A 29-year-old salinas man has again been deemed unfit to stand trial for killing his mother. Christopher sorenson is accused of beating his 71-year-old mother Janet to death this past December. He was previously ruled mentally unfit to stand trial, and was again deemed so at a hearing tuesday in a monterey county courtroom. Sorenson’s mental health is expected to be evaluated again in December. He remains in custody at Atascadero state hospital.