The family of the late singer Prince is pressing for answers into his sudden death and now, they have filed a lawsuit against pharmaceutical giant Walgreens and the Trinity Medical Center for failing to properly treat him after his 2016 overdose a week before his fatal overdose.

The Minnesota Star Tribune reports that Prince’s airplane was forced to make an emergency landing and he was taken to the Moline, IL hospital, but the family claims that the Trinity Medical Center failed to investigate and find out what the underlying cause of his issues were. Those issues, the family says, led to his overdose and ultimately his untimely death.

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Prince’s estate also makes claim that the doctor treating Prince, Nicole Mancha, and an un-named employee, both failed to identify what pills the singer actually took. Prince had actually taken counterfeit hydrocodone which contained fentanyl – a powerful and sometimes deadly opioid.

Prince’s estate is accusing two Walgreens locations in Minnesota of “dispensing narcotic prescription medications” for an invalid medical purpose, the New York Times reports.

“We will have much to say when the time is right,” said attorney John Goetz, who filed the lawsuit on behalf of Prince’s family.

“We have client interests to protect at the moment, including our theory of the case. What happened to Prince is happening to families across America. Prince’s family wishes, through its investigation, to shed additional light on what happened to Prince. At the same time, further light on the opiate epidemic will hopefully help the fight to save lives. If Prince’s death helps save lives, then all was not lost.”

No Criminal Charges

Almost two years to the day after Prince died from a fentanyl overdose, authorities in Minnesota announced that there will be no criminal charges in the case. Fentanyl is a highly addictive, synthetic opioid. It is 30 to 50 times stronger than heroin.

Officials determined that Prince ingested counterfeit Vicodin that was laced with fentanyl. “Prince had no idea he was taking a counterfeit pill that could kill him,” said Carver County attorney Mark Metz in a press conference today. “Prince’s death is a tragic example that opioid addiction and overdose deaths do not discriminate, no matter the demographic.”

Reps from Trinity Medical Center told the New York Times that the hospital does not comment on pending legal matters.

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