It has been reported vitamin bottles were also found throughout Prince's home during the inspection.
KIRK JOHNSON'S PRESCRIPTION PICK-UPS: According to court documents, Kirk Johnson went to Walgreen's and picked up Prince's prescription medication, prescribed in his name.
The search warrants, made public Monday morning, show more than 100 white capsules labeled Watson 853 were hidden in Aleve and Bayer Aspirin bottles and found in numerous rooms inside Paisley Park.
Schulenberg is the same doctor who was at Paisley Park on April 21 (the day of Prince's death) when deputies arrived on scene and the same doctor who admitted to authorities, he prescribed Oxycodone for Prince on April 14, the day before he overdosed while returning from a show in Atlanta, forcing his plane into an emergency landing.
The April 27 search warrant indicates authorities were seeking "any medications found within the address", "any and all documentation that may include or describe information on the deceased medical condition, treatments, medical history, prescriptions", "any and all illicit narcotics that could explain the cause of the decedent's death", "narcotic related paraphernalia, including scales, narcotic residues, syringes", and "any notes, ledgers, receipts, prescriptions, and other documentation that could explain the source of any medication and/or illicit narcotics discovered in the premises".
Prince apparently had no prescriptions under his own name. Authorities haven't yet charged anyone in the case.
Meanwhile, on May 3, a decision was made for the case to become a federal DEA investigation.More news: Doctor Prescribed Oxycodone for Prince in Another Name, Warrants Show
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Just six days earlier, Prince fell ill on a plane and made an emergency stop in IL as he was returning home from a concert in Atlanta.
And the former attorney for two of Prince's dead siblings says they had revealed Prince had an addiction to Percocet decades ago. With this warrant, a forensic computer examiner searched the hard drives or removable media, attempting to find existing and deleted files.
However, according to the Star Tribune, investigators have been working under the theory that the pop star did not know the pills contained fentanyl.
Investigators spoke with one of Prince's previous bodyguards who said the singer was very untrusting of cell phones, after his cell phone was hacked and his personal information was stolen. According to the documents, a suitcase labeled with the name tag "Peter Bravestrong" - an alias investigators say Prince sometimes used - was found containing multiple pill bottles in Johnson's name, as well as the lyrics to "U Got the Look", thought to be in Prince's handwriting.
Before Kornfeld was taken to be interviewed at Chanhassen City Hall, he asked to recover his backpack. He said his father was unaware that he had brought the drugs.
While authorities have the power to ask a grand jury to investigate and issue subpoenas for testimony, that step hasn't been taken, the official said. But the music icon was already dead by the time he arrived. Kornfeld said he believed there may have been opiate withdrawal.
He also told investigators he would not administer the medicine without consulting a physician or calling 911.