DETROIT — The parents of accused Oxford High shooter Ethan Crumbley continued their pursuit for a halt to their case and a block on some evidence by appealing to the Michigan Supreme Court Monday. The Michigan Court of Appeals previously rejected the appeal filed by the attorneys for James and Jennifer Crumbley that requested a stay on their case and for some evidence, including their son’s journals and text messages, be considered inadmissible in the case against them in Oakland Circuit Court. The parents each face four of involuntary manslaughter charges connected to the deaths of four Oxfor…