The Purple Rain icon passed away in April (16) after suffering an accidental fentanyl overdose and police officials have been investigating the circumstances surrounding his death ever since. The search warrant for the investigation was scheduled to expire on Monday (24Oct16), but on Friday (21Oct16) a judge in Minnesota extended it "until commencement of criminal proceedings."

The judge also sealed all accompanying documents involved in this death investigation, ruling, "disclosure of these documents could create a substantial risk of a search or a related search to become unsuccessful or severely hamper an ongoing investigation."

The documents will remain sealed until April (17), according to TheWrap.com.