Calendar An icon of a desk calendar. Cancel An icon of a circle with a diagonal line across. Caret An icon of a block arrow pointing to the right. Email An icon of a paper envelope. Facebook An icon of the Facebook "f" mark. Google An icon of the Google "G" mark. Linked In An icon of the Linked In "in" mark. Logout An icon representing logout. Profile An icon that resembles human head and shoulders. Telephone An icon of a traditional telephone receiver. Tick An icon of a tick mark. Is Public An icon of a human eye and eyelashes. Is Not Public An icon of a human eye and eyelashes with a diagonal line through it. Pause Icon A two-lined pause icon for stopping interactions. Quote Mark A opening quote mark. Quote Mark A closing quote mark. Arrow An icon of an arrow. Folder An icon of a paper folder. Breaking An icon of an exclamation mark on a circular background. Camera An icon of a digital camera. Caret An icon of a caret arrow. Clock An icon of a clock face. Close An icon of the an X shape. Close Icon An icon used to represent where to interact to collapse or dismiss a component Comment An icon of a speech bubble. Comments An icon of a speech bubble, denoting user comments. Comments An icon of a speech bubble, denoting user comments. Ellipsis An icon of 3 horizontal dots. Envelope An icon of a paper envelope. Facebook An icon of a facebook f logo. Camera An icon of a digital camera. Home An icon of a house. Instagram An icon of the Instagram logo. LinkedIn An icon of the LinkedIn logo. Magnifying Glass An icon of a magnifying glass. Search Icon A magnifying glass icon that is used to represent the function of searching. Menu An icon of 3 horizontal lines. Hamburger Menu Icon An icon used to represent a collapsed menu. Next An icon of an arrow pointing to the right. Notice An explanation mark centred inside a circle. Previous An icon of an arrow pointing to the left. Rating An icon of a star. Tag An icon of a tag. Twitter An icon of the Twitter logo. Video Camera An icon of a video camera shape. Speech Bubble Icon A icon displaying a speech bubble WhatsApp An icon of the WhatsApp logo. Information An icon of an information logo. Plus A mathematical 'plus' symbol. Duration An icon indicating Time. Success Tick An icon of a green tick. Success Tick Timeout An icon of a greyed out success tick. Loading Spinner An icon of a loading spinner. Facebook Messenger An icon of the facebook messenger app logo. Facebook An icon of a facebook f logo. Facebook Messenger An icon of the Twitter app logo. LinkedIn An icon of the LinkedIn logo. WhatsApp Messenger An icon of the Whatsapp messenger app logo. Email An icon of an mail envelope. Copy link A decentered black square over a white square.

Alarm grew in inner circle as Prince’s health waned, new documents show

Some of Prince’s closest confidants had grown increasingly alarmed about his health in the days before he died and tried to get him help as they realised he had an opioid addiction, according to newly-released investigative documents.

Yet none were able to give investigators the insight they needed to determine where the musician got the fentanyl that killed him, the documents said.

Just ahead of this weekend’s two-year anniversary of Prince’s death, prosecutors announced they would file no criminal charges in the case and the state investigation was closed.

“My focus was lasered in on trying to find out who provided that fentanyl, and we just don’t know where he got it,” said Carver County attorney Mark Metz.

“We may never know. It’s pretty clear from the evidence that he did not know, and the people around him didn’t know, that he was taking fentanyl.”

Metz said Prince had suffered from pain for years and probably believed he was taking a common painkiller.

Prince was 57 when he was found alone and unresponsive in a lift at his Paisley Park studio compound on April 21, 2016.

His death sparked a national outpouring of grief and prompted a joint investigation by Carver County and federal authorities.

Carver County attorney Mark Metz, right, said no criminal charges would be brought (Jim Mone/AP)
Carver County attorney Mark Metz, right, said no criminal charges would be brought (Jim Mone/AP)

A post mortem examination found he died of an accidental overdose of fentanyl, a synthetic opioid 50 times more powerful than heroin.

The investigative materials, including documents , photos and videos, were posted online on Thursday.

Several images show the music superstar’s body on the floor of his Paisley Park estate, near a lift.

The documents include interviews with Prince’s inner circle.

They included longtime friend and bodyguard Kirk Johnson, who told investigators that he had noticed Prince “looking just a little frail,” but said he did not realise he had an opioid addiction until he passed out on a plane a week before he died.

“It started to all make sense though, just his behaviour sometimes and change of mood, and I’m like, oh this is what, I think this is what’s going on.

“That’s why I took the initiative and said let’s go to my doctor because you haven’t been to the doctor, let’s check it all out,” Johnson said, according to a transcript of an interview with investigators.

A post mortem found Prince died of an accidental overdose of fentanyl (John Shearer/Invision/AP)
A post mortem found Prince died of an accidental overdose of fentanyl (John Shearer/Invision/AP)

Johnson said after that episode, Prince cancelled some concerts as friends urged him to rest.

He also said that Prince “said he wanted to talk to somebody” about his addiction.

Johnson asked his own doctor, Michael Todd Schulenberg, to see Prince on April 7, 2016.

Schulenberg told authorities he gave Prince an IV; authorities said he also prescribed vitamin D and a nausea medication — under Johnson’s name.

Johnson then called Schulenberg on April 14, asking the doctor to prescribe a pain medication for Prince’s hip.

Schulenberg did so, again under Johnson’s name, Metz said.

On the night of April 14 to April 15, Prince passed out on a flight home from Atlanta, and the private plane made an emergency stop in Moline, Illinois.

The musician had to be revived with two doses of a drug that reverses the effects of an opioid overdose.

A paramedic told a police detective that after the second shot of naloxone, Prince “took a large gasp and woke up”, according to the investigative documents. He said Prince told paramedics, “I feel all fuzzy.”

A nurse at the hospital where Prince was taken for monitoring told detectives that he refused routine overdose testing that would have included blood and urine tests.

When asked what he had taken, he did not say what it was, but that “someone gave it to him to relax”.