This chapter presents the use of digital evidence to reconstruct actions taken in furtherance of a crime, providing case examples to demonstrate key concepts. Digital evidence is defined as any data stored or transmitted using a computer that support or refute a theory of how an offense occurred or that addresses critical elements of the offense, such as intent or alibi. Homicide, sexual assault, and other violent crimes can involve digital evidence from a wide range of sources, including personal computers, handheld devices, servers, and the internet, helping investigators reconstruct events and gain insight into the state of mind of individuals. Computers and networks should be considered an extension of the crime scene, even when they are not involved directly in facilitating the crime. A single computer can contain e-mail communications between the victim and the offender, evidence of intent to commit a crime, incriminating digital photographs taken by the offender as trophies, and software applications used to conceal digital evidence. It is suggested that digital evidence that is handled and interpreted properly can be used to apprehend offenders, authenticate documents, assess alibis and statements, and determine intent.