DENVER (AP) -- New York-based reporter Jana Winter lost another round Tuesday in her battle to protect her confidential sources for a story about Colorado theater shooting suspect James Holmes.
A New York state appeals court upheld a lower court's decision to enforce a Colorado subpoena that could force Winter to reveal the names of her sources or go to jail.
Colorado needs the approval of New York judges to enforce the subpoena.
Winter's attorney said she would appeal Tuesday's ruling to New York's highest court, the Court of Appeals.
Winter, who works for Fox News, cited unidentified law-enforcement sources in a story saying Holmes sent a psychiatrist a notebook containing violent images.
Holmes' lawyers said that violated a gag order, and they want the Colorado judge overseeing Holmes' case to punish the officials who spoke to Winter. They also said officials who denied under oath that they were Winter's sources may have lied, undermining their credibility if they're called to testify at the trial.
The defense hasn't succeeded in identifying Winter's sources, so they want her to reveal them. Winter is resisting, citing New York and Colorado reporter shield laws and an ethical obligation to protect her sources' identities.
The Colorado judge has not yet said whether he will order Winter to reveal the names.
Winter's attorney, Dori Ann Hanswirth, said she was heartened by a dissenting opinion from two judges on the five-judge panel that ruled Tuesday.
"I thought that the dissent was very powerfully written, persuasive, and something that we are very hopeful will get a lot of play with the New York Court of Appeals," she said.
Holmes is charged with killing 12 people and injuring 70 in a suburban Denver theater in July 2012. Prosecutors are seeking the death penalty.
Holmes pleaded not guilty by reason of insanity. The notebook could become evidence because it might shed light on his mental state.
Days before the shooting, Holmes sent the notebook and burnt paper money to Lynne Fenton, a psychiatrist who had been treating him. Authorities seized the package before Fenton received it.
Authorities have not said publicly what the notebook contains.
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