Adam Jasinski

Big Brother 9 winner Adam Jasinski has been sentenced to four years in prison on drug and tax charges, The Associated Press reports.

U.S. District Court Judge William Young sentenced Jasinski Friday for attempting to sell 2,000 oxycodone pills to a witness cooperating with the government in North Reading, Mass., in October 2009.

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Jasinski pleaded guilty in October to possession with attempt to distribute oxycodone and failure to file a tax return for 2008, the year he won Big Brother's $500,000 prize. He has remained in custody since.

Before the sentencing, Jasinski asked Young for leniency, and said he was being treated for bipolar disorder and drug addiction.

Jasinski had faced a maximum of 14 years on the drug charge and one year on the tax charge.