A Hoffman Estates behavioral health hospital whose former employee sent “vile” letters to patients and other employees will face a new trial after an appellate court panel determined jurors should not have been given a “confusing and ambiguous” special interrogatory.The 1st District Appellate Court order issued Friday reversed Cook County Associate Judge Mary R. Minella’s decision to enter judgment in favor of defendant Alexian Brothers Behavioral Health Hospital even after the jury awarded plaintiff Jane Doe $1 million …