The U.S. Supreme Court has denied a request for a new trial from a man accused of shaking his 2-year-old daughter to death, clearing the way for his execution in Texas, David Martin Davies reports for Texas Public Radio. Prosecutors in Robert Roberson’s case presented brain swelling as evidence, which was considered to be proof of child abuse at the time. Roberson’s attorney, Gretchen Sween, argued there is evidence that shows Nikki died from pneumonia. Shaken baby syndrome is a controversial child abuse theory that has since been discredited and has led to many wrongful convictions across the country. An execution date is expected to be scheduled in the coming days.