"Sexual murder" is not a clearly defined term among experts on this phenomenon. Whereas the definition of homicide as the willful killing of one human by another is straightforward, the definition of sexual homicide is rife with debate. Some experts prefer to see any murder in which sexual contact is explicit as a sexual homicide, whereas others confer this designation only when the perpetrator describes an internal feeling of arousal. Although Schlesinger does not provide his own definition of sexual murder, he does promote the need to understand these acts by examining the context of the crime and the psychodynamics of the criminal. He emphasizes how important it is for forensic examiners to review witnesses' statements, collateral history from family and employers, police reports, and autopsy findings before formulating expert opinion about the criminal's intent or accountability for an offense. Otherwise, examiners may arrive at distorted conclusions by relying solely on information obtained from interviews with the criminal and by focusing on "the presenting problem" as in clinical practice instead of seeking more reliable evidence from collateral sources.