Doctors rush to use Supreme Court ruling to escape opioid charges

Dr. Nelson Onaro conceded last summer that he'd written illegal prescriptions, although he said he was thinking only of his patients. From a tiny, brick clinic in Oklahoma, he doled out hundreds of opioid pills and dozens of fentanyl patches with no legitimate medical purpose.

"Those medications were prescribed to help my patients, from my own point of view," Onaro said in court, as he reluctantly pleaded guilty to six counts of drug dealing. Because he confessed, the doctor was likely to get a reduced sentence of three years or less in prison.

But Onaro changed his mind in July. In the days before his sentencing, he asked a federal judge to throw out his plea deal, sending his case toward a trial. For a chance at exoneration, he'd face four times the charges and the possibility of a harsher sentence.