He had been fighting with Martha when she revealed that she was pregnant, in addition to the fact that she had been sleeping with several other boys. They made up, but while they made love in Jacob's car, they got snowed in. Unable to free the car through a variety of methods, they decided to try to jack one end of the car up while they packed snow under the other end. Their fight reignited and got violent. Martha swung a crowbar at Jacob and missed him by an inch. He charged at her, knocking her to the ground. She landed face first on the jack and was killed. Ben decides that it is best to not reveal the truth. He coaches Jacob on a different version of the story, which they tell to their lawyer, but the plan goes awry when Ben is deposed by the grand jury and realizes that there is no father-son privilege which exempts him from testifying. When Carolyn is called to testify, she reveals the truth. Jacob's lawyer is incensed, but he explains that he will simply treat Carolyn as a hostile witness and her testimony will amount to hearsay, since it conflicts with Jacob's account of the events.