Painkiller prescribed for Prince given in another name

But, he says, that prescription is tangential to the case.

DOCTOR TRIED TO PROTECT PRINCE'S PRIVACY: Carver County investigators and the DEA learned that Prince had no prescriptions issued to him and that Kirk Johnson had only one, oxycodone, which was prescribed on April 14 by Dr. Schulenberg, the same doctor who was at the scene of Paisley Park the day Prince died.

They do not say where Prince got the fentanyl that killed him.

The medical examiner's office said Prince died of an accidental overdose of the opioid fentanyl.

Prince was 57 when he was found alone and unresponsive in an elevator at Paisley Park on April 21.

Dr Michael Tod Schulenburg, who saw him on April 7 and again on April 20, admitted to prescribing the drug on the same day as the emergency landing.

-Cell tower data from Sprint, Verizon, AT&T and T-Mobile of all cell phones used at or near Prince's compound. Authorities asked that the search warrants be sealed "until April 17, 2017 or when a criminal case may be instituted, whichever occurs first".

Kornfeld told investigators Bekure and Johnson began search for Prince in the studio. Also according to the search warrant, investigators were told by witnesses that Prince "recently had a history of going through withdrawals which are believed to be the result of abuse of prescription medication".

April 19, 2016: Prince attends a concert at the Dakota in Minneapolis. He later told police that was the first time he had done anything like that for Prince.

While returning to Minneapolis, Prince's private plane makes an emergency landing in Moline, Ill., about 1:15 a.m. after he overdoses on opioids, according to a source.

Some of the bottles were labeled Aleve and Bayer - common over-the-counter medications - but contained pills marked "Watson 853", the opioid painkiller acetaminophen-hydrocodone. Another, labeled Ondansetron, contained the controlled substance Acetarninophen/Oxycodone hydrochloride. The bottles were under his bodyguard Kirk Johnson's name. The prescribing doctor was listed as Schulenberg.

The B12 detail was included in a detective's affidavit seeking one of the search warrants. Investigators interviewed Johnson sometime after Prince's death, and he told them Prince had gone to a local medical center for an illness in 2014 or 2015.

Lyrics for the song, "U Got the Look", were also found in that suitcase, written in Prince's handwriting.

-All emails, images, google docs, etc.

DRUGS FOUND AT PAISLEY PARK: According to the search warrants, investigators recovered a wide range of drugs from Paisley Park - most were mislabeled and none were prescribed to Prince.

Investigators were particularly interested in information and data related to a gmail account under "PaisleyParkAfterDark", due to Johnson's access to the account. Investigators found no prescriptions for fentanyl in Prince's name.

Kirk Johnson, a drummer for Prince who was with the music icon during his tumultuous last week, spoke to CBS News' Jamie Yuccas earlier this month. Instead, he turned to emails, which he would access from an Apple Mac Book computer, under an account set up by his former manager.

It's been almost a year since Prince died from an accidental overdose at the Paisley Park estate, after being found unresponsive in one of the elevators.

None of the medications found in Prince's home following his death previous year were prescribed to him, according to court documents unsealed Monday.

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