(Portland, OR) -- A Gresham woman who's accused of killing her 17-year-old son is considered unfit to assist in her own defense at trial. A judge made that determination yesterday regarding 42-year-old Dianne Davidoff, who's facing a murder charge in the shooting death of Jacob Davidoff late last month. Dianne Davidoff has been sent to the Oregon State Hospital for a psychiatric evaluation. A status check is scheduled for December 9th.