The difference between the two could drastically affect the outcome of your case. Both crimes involve the intentional killing of another person, but your state of mind and the circumstances surrounding the death determine whether it meets the legal requirements of murder or voluntary manslaughter here in California.
Being charged with assault or battery in California can understandably be frightening and humiliating. After all, a conviction related to these crimes can lead to time behind bars and make it difficult to land jobs in the future. However, just because you face charges associated with these crimes does not mean you are automatically guilty. In reality, you are presumed innocent until and unless your guilt is proved in a court of law.