Prince's death is still filled with mystery over a week after his tragic passing. Now, sadly, it seems the possible cause of death is the subject of a criminal investigation. The Star Tribune reveals that the reason information has been so hard to come by is because The Carver County Sheriff's Office in Minneapolis is in the middle of a criminal probe, investigating various pharmacies and doctors who may have illegally prescribed the rock icon with opiates.
Police have reportedly served a search warrant at a local drug store where Prince was seen several times in the days before his death. Sources are also saying that police are looking for doctors who may have prescribed medications and pharmacies that may have filled prescriptions for the rock star. 

An unidentified family member allegedly told news sources that Prince had multiple doctors writing him scrips, including a "personal friend."

TMZ also reported that just days before his death, Prince suffered a nearly fatal overdose on Percocet.

Fans have already caught wind of the opioid overdose rumors and are sharing their opinions on Twitter.

Carver County Chief Deputy Jason K. Kamerud explained that investigators are allowed to suppress information if it's related to an active "criminal" investigation. The rule that Kamerud referenced states, "Investigative data collected or created by a law enforcement agency in order to prepare a case against a person, whether known or unknown, for the commission of a crime or other offense for which the agency has primary investigative responsibility are confidential or protected nonpublic while the investigation is active.”

Despite this, it is important to note that just because a criminal investigation is underway, it does not be that any suspects exist, or any charges will be filed. Authorities have said that neither foul play nor suicide is suspected, but StarTribune sources say investigators are looking into whether or not an opioid overdose was the cause of death. Kamerud added, when speaking to Access Hollywood, "Some investigations are like assembling a 50 piece puzzle. Some are like assembling a 10,000 piece puzzle. This is the latter. We are months away from knowing anything. We want to take some time and do it well, not do it fast.”
The investigation is far from over, hopefully any discoveries that are made will not result in a tarnishing of his legacy.

Check out how Prince's legacy will live on in the way of his estate, and vaults of unreleased music with BET Breaks: