SALT LAKE CITY — New charges of forgery have been filed against the woman accused of spiking a man's peach smoothie with antifreeze.

Selena Irene York, 34, forged the 79-year-old man's life insurance policies to list herself as the beneficiary, Deputy Uintah County Attorney John Gothard said Monday.

York has pleaded not guilty, her defense attorney Michael Humiston said.

She faces still more charges on allegations that she used the man's credit cards without his permission. Gothard said more than a dozen theft charges will be filed against York later this week.

Humiston said he was trying to negotiate a plea agreement on the attempted murder charge she's been facing, which accuses York of adding antifreeze to Ed Zurbuchen's beverage in 2008.

"I ended up in a hospital for four days not knowing what happened," Zurbuchen said Monday. "I thought I had a stroke."

Zurbuchen said he let York and her daughter live with him in Vernal, Utah, and still takes occasional roommates — "after a security check."

York was arrested in Eugene, Ore., in July after a jilted boyfriend tipped police to her whereabouts. Joseph Dominic Ferraro told Vernal police that York revealed she planned to get control of Zurbuchen's finances and then kill him.

According to a Vernal police report, Ferraro told authorities that York seemed "very pleased with herself" when she told him about her scheme during a Sept. 29, 2008, phone call.

A preliminary hearing is set for Wednesday. York's lawyer and prosecutors said they were hoping to reach a plea agreement before then.

York was charged with forgery last month under her apparent maiden name, Selena Elderkin, which she used along with a Social Security number to change the insurance policies, authorities said.

A Beneficial Life Insurance broker was "amazed how much Selena was able to get changed in their system," the police report said.

Zurbuchen wasn't certain how many life insurance policies he had, how they worked or whether he originally named others as beneficiaries. He referred calls to an insurance broker who couldn't be immediately reached.

Gothard said Zurbuchen had four life insurance policies, but the police report refers to some of the policies as annuities. Zurbuchen said he was receiving payment from some of the investments.