(CNN) -- A key investor with convicted swindler Bernie Madoff drowned in his swimming pool Sunday afternoon, police said.



Jeffry Picower, 67, was found unconscious in his pool at his Palm Beach, Florida, home, Palm Beach police said. He was pronounced dead at a hospital. Police said they are investigating his death using "standard operating procedure in any drowning."



Picower invested with Madoff, who was convicted of operating a Ponzi scheme and defrauding thousands of investors. Madoff pleaded guilty in March to 11 counts, including fraud, money laundering and perjury, and was sentenced to 150 years in prison.



Prosecutors have said it was the largest investor fraud ever committed by a single person, totaling billions in losses to investors.



Picower's Picower Foundation of Palm Beach announced it was shutting down early this year because of Madoff losses, CNN Money reported. Picower's 2007 tax return valued its portfolio at $955 million.



But there were also suggestions that Picower benefited from Madoff's swindle. Citing an unnamed source, Fortune magazine said in April that Frank DiPascali, the chief lieutenant in Madoff's secretive investment business, was "prepared to testify that he manipulated phony returns on behalf of some key Madoff investors," including Picower.



Picower also allegedly "extracted billions of dollars from Madoff's fund before it collapsed," according to Forbes magazine.
Who did the patient invest money with? Who was found unconscious? Where was Jeffry Picower found unconcious? Whats the age of the man? What was Madoff convicted of? Where was Picower found? What did the foundation announce? What announced closure earlier this year? Who was convicted of a Ponzi scheme?
Bernie Madoff Jeffry Picower, 67, in his pool 67, operating a Ponzi scheme and defrauding thousands of investors. in his pool at his Palm Beach, Florida, home, it was shutting down early this year because of Madoff losses, Picower's Picower Foundation of Palm Beach Madoff,
question: Who did the patient invest money with?, answer: Bernie Madoff | question: Who was found unconscious?, answer: Jeffry Picower, 67, | question: Where was Jeffry Picower found unconcious?, answer: in his pool | question: Whats the age of the man?, answer: 67, | question: What was Madoff convicted of?, answer: operating a Ponzi scheme and defrauding thousands of investors. | question: Where was Picower found?, answer: in his pool at his Palm Beach, Florida, home, | question: What did the foundation announce?, answer: it was shutting down early this year because of Madoff losses, | question: What announced closure earlier this year?, answer: Picower's Picower Foundation of Palm Beach | question: Who was convicted of a Ponzi scheme?, answer: Madoff,