Violent crimes will be investigated, charged, tried, and punishment imposed under law if the crime occurred within state lines and involved harm to either the government of the State of California or its citizens. Violent crimes will be charged as felonies under federal law, tried in a federal court, with prison time served in a federal prison, if the crime was committed against the U.S. government or committed anywhere the U.S. government has jurisdiction.
Violent crimes can be challenged by a variety of means and the law recognizes many defenses. The most common being self-defense. But the force you use during self-defense has to be reasonable given the circumstances. Hence, if you kill a person that charges at you unarmed, a jury or a judge might find that use of deadly force was unreasonable. If a jury or judge finds that the force you use is unreasonable, then you would be facing a charge of murder in the second degree. The unintentional murder of a person in the heat of passion from provocation might also trigger a charge of murder in the second degree. Violent crimes can also be challenged based on the investigative procedures that the police or law enforcement adopted during their investigation. When facing violent crimes, the stakes are usually high. You should consult with an attorney the second you are able to make a phone call after being arrested and taken to jail.