A Fox News journalist ordered to testify about confidential sources she cited in a story about the 2012 Colorado theater massacre is seeking a postponement to appeal the ruling, court documents made public on Tuesday showed.

New York-based TV reporter Jana Winter was ordered by Arapahoe County District Judge William Sylvester to appear in Colorado next month to testify about her story, which linked a notebook to accused gunman James Holmes . The story was reported after the judge issued a gag order in the case.

A New York judge issued a subpoena for Winter at Sylvester's request after several law enforcementofficers denied under oath that they were the source for the story and Sylvester said there was no other way to trace the leak.

Holmes, a 25-year-old former neuroscience graduate student at the University of Colorado, is accused of killing 12 people

​Reuters