TOMAH, Wis. — A Tomah man accused in a Thanksgiving stabbing says he has a mental disease or defect that should excuse his being prosecuted. George Solis, 44, entered the insanity plea at an arraignment hearing. Solis is accused of stabbing a relative with a kitchen knife while he and his family were watching football. When another family member tried to step in, Solis allegedly tried to stab him too.