All-County Transportation employees Donald Luis Cooper Jr., 32, and Chaunee Marie Helm, 30,both of Hesperia, were arrested on suspicion of mutilation of human remains.  They werearrested Friday afternoon after 4 year old Robyn Gillette's body was used for sex.  The girlsuffered a seizure Wednesday night and had stopped breathing.  She was taken by paramedics tothe hospital and died.  Her body was taken to the county morgue in San Bernardino forexamination then to the Inland Eye and Tissue Bank so her corneas could be harvested.  Atechnician conducting the operation noticed the girl's body had been sexually assault and notifiedthe Coroner's office.  It was determined that the assault did not occur at her home.