(AP) — A Gretna woman accused of embezzling more than $4 million from the tobacco and candy business where she worked has pleaded guilty to three counts of tax evasion.

The Nebraska Department of Revenue and the Sarpy County attorney opted to pursue the tax evasion charges against 54-year-old Caroline Richardson after her former employer, Colombo Candy and Tobacco Wholesale Co, declined to press charges against her.

Instead, the company has gone after an Iowa casino. In a federal lawsuit, Colombo says Ameristar Casino should have known that Richardson was gambling with ill-gotten money.

In exchange for her pleas, prosecutors dropped three counts of filing a false income tax return.

She faces up to 15 years in prison when she’s sentenced on Dec. 16.