A cashier fesses up to one of the largest embezzlement cases in Pennsylvania history.

FOX's Lilian Woo reports:

A Pennsylvania woman admitting to stealing $13 million during her 16 years at a monuments and engraving firm.

Cynthia Mills using money she stole from Matthews International where she was a cashier and treasury specialist to pay for luxuries, like an $800,000 yacht, along with two other boats, at least eight cars, a snowmobile, jewelry and more.

Her attorney says most of the money she took went to a casino because she has a gambling addiction. The 55-year-old pleading guilty to charges including mail fraud, wire fraud and tax evasion, hoping the judge will approve a seven and a half year federal prison sentence.

Lilian Woo, FOX News.

Follow Lilian Woo on Twitter: @LilianNY