If someone you know has been charged with Murder, it is important you know and understand the charges and what they mean. In Pennsylvania, there is the general term, Criminal Homicide, which is defined as the intentional, knowing, reckless or negligent causing of the death of another human being. A defendant may be charged generally with the crime of Criminal Homicide, but it is the specific charge which counts. There is Murder of the first degree, second degree, third degree, Voluntary Manslaughter and Involuntary Manslaughter. Each one is different, and the sentencing for each is not the same.