Despite an intensive law enforcement investigation, "there is no reliable evidence showing how Prince obtained the counterfeit Vicodin laced with fentanyl", or who was involved in procuring him those pills, Metz said. Investigators say that Prince took counterfeit pills that contained fentanyl before he died.
The revelation comes as a Minnesota prosecutor announced no one will be charged in the music legend's death almost two years ago, as a doctor tied to the case agreed to pay $30,000 in federal fines.
No criminal charges will be filed in the 2016 death of pop star Prince from an opioid overdose, a Minnesota prosecutor has said. Metz said Prince had no prescription for fentanyl or Vicodin.
Metz said the evidence shows Prince thought he was taking Vicodin, not fentanyl.
Metz acknowledged that someone gave Prince the counterfeit pills, saying: "There is no doubt that the actions of individuals around Prince will be criticized, questions and judged in the days and weeks to come".
"After he learned of Prince's addiction, he immediately worked to refer Prince to a treatment facility and to transfer care to a chemical dependency specialist", Conners said.
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Nauert said the administration would like to see "a more free and democratic Cuba" but is "not overly optimistic". The legislators then cast secret ballots and were expected to nearly unanimously support the slate.
Authorities alleged Schulenberg, a family physician who saw Prince twice before he died, illegally prescribed an opioid to Prince in violation of the Controlled Substances Act. Dr. Schulenberg admitted in a statement to a detective that he had given Prince a prescription for oxycodone the same day as an emergency plane landing in Moline, Illinois, but put the prescription in Kirk Johnson's name for Prince's privacy.
The coroner's report found that he had an "exceedingly high" concentration of fentanyl in his body when he died.
The painkillers prescribed by Schulenberg were not responsible for Prince's death, Metz said.
Earlier Thursday, Dr. Michael T. Schulenberg agreed to pay a $30,000 civil fine and submit to two years' monitoring by the U.S. Drug Enforcement Agency.
Schulenberg also admitted that Johnson asked him to prescribe pain medication to Prince on April 14, a week before the musicians death, because Prince was experiencing hip pain and had a concert that night in Atlanta - the show would be notable for being his last full concert. Prince was revived by first responders using the drug Naloxone, a fast-acting agent used to reverse the effects of an opioid overdose.
The settlement released Thursday doesn't name Prince, but search warrants previously released say Schulenberg wrote a prescription for oxycodone in the name of Prince's bodyguard, intending it to go to Prince.
Schulenberg was not under criminal investigation.