Can a sleepwalker commit murder? Mark Schall admits being guilty of murdering his mother-in-law. In his defense, a team of lawyers attempt to prove that while Mark did in fact carry out murd... Read allCan a sleepwalker commit murder? Mark Schall admits being guilty of murdering his mother-in-law. In his defense, a team of lawyers attempt to prove that while Mark did in fact carry out murder, he was not awake when it happened.Can a sleepwalker commit murder? Mark Schall admits being guilty of murdering his mother-in-law. In his defense, a team of lawyers attempt to prove that while Mark did in fact carry out murder, he was not awake when it happened.