Most people use the words “murder” and “homicide” interchangeably, but they are not the same. Although murder and homicide are both used to describe the act of killing another human being, the circumstances surrounding the charges are different.
The easiest way to describe the differences between murder and homicide is that homicide is the killing of another human being, while murder requires the intent to kill another human being. Homicide can be used to describe any death where another person is at fault, but there are mitigating circumstances that can influence the charge of homicide. When someone is convicted of murder, however, they are not only convicted of a homicide, but also the malicious intent to kill.
More to the point, murder is deliberate AND illegal and/or immoral homicide. Killing can be quite deliberate without being murder, as in self defense, defense of others, war, etc. It can also be unintentional but negligent and illegal/immoral without being murderm e.g. drunk driving (manslaughter). Murder requires both conditions.
And also, not everywhere has the same legal charges. Some places people aren’t charged with murder, but negligent homicide, or intentional homicide, 1st degree homicide (ie murder/murder-1), etc. In other places it can be murder-1 or murder-2. It can vary from state to state.