Prince's Minnesota Home Searched by Police-again

Michael Schulenberg, a local family practice doctor, had treated the musician twice, including the day before he died, and showed up at his Paisley Park estate the morning of his death on April 21 with test results, the document obtained by the Los Angeles Times showed Tuesday. Schulenberg also said that he had given Prince a prescription in the weeks leading up to his passing. Results of an April 22 autopsy are pending.

According to a law enforcement source, investigators found prescription opioid medication on Prince and at Paisley Park after his death. It's unclear if he was being treated for any health issues. They told Associated Press they were "being thorough" with their investigation. The Los Angeles Times reported Tuesday that the 57-year-old entertainer had agreed to an intervention not long before his death.

The court documents were filed May 6, but were accidentally left unsealed until May 10, when authorities took action to seal it, according to the Star-Tribune. One visit occurred at the Chanhassen complex the day before Prince was found dead. Nelson died in 2013.

Prince performed at the 2013 Billboard Music Awards where he was also presented with the ICON Award. She died in 2006.

Attorney William Mauzy told the Star Tribune earlier this month that representatives for Prince called Howard Kornfeld, a doctor and medical director at Recovery Without Walls, but that Kornfeld could not make it to Minnesota to meet with Prince until April 22.

He is a 1995 graduate of the Oregon Health Sciences University in Portland, Oregon, according to the records.

The sworn affidavit did not say whether Schulenberg was present when Prince was found unconscious and not breathing in an elevator at his suburban Minneapolis home.

The L.A. Times notes Schulenberg's LinkedIn profile page has been removed from public view and states that he no longer works for the North Memorial Health Care system.

CNN called several numbers listed for the doctor and left a request for comment on his voice mail.

April 16 - Prince hosts a dance party at his Paisley Park complex and makes a brief appearance, showing off a new purple piano.

Investigation of a person of interest in Prince's death is reportedly underway.

"Once federal authorities like the DEA start asking questions, people get pretty anxious and go into hiding", a legal source said.