It could be either depends a lot on the context that led to the altercation.
"Voluntary manslaughter
Sometimes called a crime of passion murder, is any intentional killing that involves no prior intent to kill, and which was committed under such circumstances that would "cause a reasonable person to become emotionally or mentally disturbed". Both this and second-degree murder are committed on the spot under a spur-of-the-moment choice, but the two differ in the magnitude of the circumstances surrounding the crime. For example, a bar fight that results in death would ordinarily constitute second-degree murder. If that same bar fight stemmed from a discovery of infidelity, however, it may be mitigated to voluntary manslaughter."
"Voluntary manslaughter Sometimes called a crime of passion murder, is any intentional killing that involves no prior intent to kill, and which was committed under such circumstances that would "cause a reasonable person to become emotionally or mentally disturbed". Both this and second-degree murder are committed on the spot under a spur-of-the-moment choice, but the two differ in the magnitude of the circumstances surrounding the crime. For example, a bar fight that results in death would ordinarily constitute second-degree murder. If that same bar fight stemmed from a discovery of infidelity, however, it may be mitigated to voluntary manslaughter."