The Penal Code defines criminal homicide as intentionally, knowingly, recklessly, or with criminal negligence, causing the death of an individual. This definition includes the four offenses of capital murder, murder, manslaughter, and criminally negligent homicide.
Criminal homicide in Texas is a definition and a category of offenses. Criminal homicide is not on its own a defined offense. It is also worth noting that terms used to describe offenses in other jurisdictions may carry no legal meaning in Texas. Terms not used in Texas include murder in the first degree, murder in the second degree, premeditated murder, voluntary manslaughter, and involuntary manslaughter. While these are common phrases in movies and TV shows, remember that most movies and TV shows are not made in Texas.
Another big difference between what we see on television and the actual law is the concept of premeditation. In layman’s terms, premeditation is the act of planning out and committing a crime, as opposed to committing it spur of the moment. How long you thought about killing someone isn’t central to criminal homicide offenses in Texas. What’s more important is the outcome of the conduct and the culpable mental state. For instance, whether you plan for weeks to murder another person, or whether or not you did it after you got into an unexpected argument and did it on spur of the moment, you will likely still be charged with the same offense in Texas. In other states, the charges might be different based on your premeditation.