The trial of a former Bloomington High School teacher, accused in the stabbing death of her husband, is being pushed back. It's being delayed so Sarah Mellor's defense can have more time to prepare. The 30 year old pleaded not guilty earlier this year to first degree murder. October, 31 year-old Mark Mellor was stabbed at a campground near Carlock. He later died at the hospital. The trial was supposed to begin in January.