It looks like there is also some sort of "federal investigation" into Prince's final days, including the role of the doctor who was about to treat him and his son, who found the body.
"Meanwhile, federal authorities joined the investigation into the singer's death last month in a move by the U.S. Attorney's Office and the DEA to allow investigators to probe Prince's final days spent outside of Minnesota, when the singer's private plane made an emergency landing in Illinois.
Officials said that the main reason the federal authorities had been brought in was so the investigation could cover the multiple states Prince had visited in the weeks before his death.
Prince's private jet made an emergency landing in Moline, Illinois, six days before he died so he could be rushed to hospital.
The singer, who was flying from a show in Atlanta, was treated for flu and did not stay the night at the hospital.
He appeared at a dance party in Minnesota just days before his death to let his fans know he was recovering, telling them: 'Wait a few days before you waste any prayers.'
Prince was last pictured the night before his death leaving a Walgreen's near his home around 7pm, marking the fourth time the singer had been to the pharmacy that week.
An hour later, he headed back inside his vast estate and 13 hours later he was found by friend Kirk Johnson and personal assistant Meron Bekure lying unresponsive in an elevator.
Paramedics performed CPR upon arriving on the scene but were not successful in reviving the singer. An autopsy was performed the following day.
The day before Prince died, his representatives reached out to California doctor Dr Howard Kornfeld to arrange a meeting, a lawyer for the doctor said.
Attorney William Mauzy said Dr Kornfeld had never met or spoken to Prince before Prince's representatives contacted him on April 20.
Mauzy said Dr Kornfeld was not able to travel immediately to Minnesota, so he arranged for his son Andrew to go instead.
Andrew Kornfeld took a late flight on April 20 so he could be at Prince's Paisley Park studio complex the next morning. When he got there, he was with Johnson and Burke when they found Prince in the elevator, and it was he who called 911.
Mauzy said Andrew was carrying a small amount of buprenorphine, which is used to treat addiction and offers pain relief with less possibility of overdose and addiction.
He added that Andrew never intended to give the medication to Prince, and instead planned to give it to the Minnesota doctor who was scheduled to see Prince.
He also said the elder Kornfeld arranged for a Minnesota doctor to evaluate Prince, and that the doctor had cleared his schedule for the following morning but Prince was found unresponsive before that could happen.
'Dr. Kornfeld was never able to meet Prince, never talked to Prince, and sadly, unable to arrive in time to help Prince,' Mauzy told reporters.
Mauzy said Andrew has been questioned by investigators.
When asked about the legality of his carrying buprenorphine, Mauzy declined to answer. But he said he believes Minnesota law would protect Andrew from any potential charges related to Prince's death.
Under the law, a person who seeks medical assistance for someone who is overdosing on drugs may not be prosecuted for possessing or sharing controlled substances, under certain circumstances.
Mauzy said it was not uncommon for Dr Kornfeld to send his son on his behalf.
He said Andrew is a pre-med student and that convincing people to seek treatment is something 'he has done for years'.
The same official also said investigators are looking at whether Prince had suffered an overdose when his plane made the emergency landing in Illinois.
Dr Kornfeld runs Recovery Without Walls in Mill Valley, California. His website describes the practice as 'specializing in innovative, evidence-based medical treatment for chronic pain and drug and alcohol addiction'.
Andrew is listed on the website as a practice consultant.
Mauzy said Prince's representatives told Dr Kornfeld that the singer was 'dealing with a grave medical emergency', however the doctor did not explain what the issue was.
Mauzy said Dr Kornfeld hoped to get Prince 'stabilized in Minnesota and convince him to come to Recovery Without Walls in Mill Valley. That was the plan'.
Stuart Gitlow, an addiction medicine expert speaking without direct knowledge of Prince's case, questioned whether Dr Kornfeld and his son acted appropriately.
'If a physician feels that a patient is having an emergency, his obligation is to call an ambulance and get the patient to emergency personnel who can assess the situation — not to fly to the patient,' Gitlow said.
'It's not routine for doctors to fly across the country to start people on buprenorphine,' said Gitlow, a past president of the American Society of Addiction Medicine and a faculty member of the University of Florida.
'That's something that can be handled locally.'
http://www.dailymail.co.uk/news/article-3622177/Official-says-Prince-died-opioid-overdose.html
