Answer:she should be charged with second degree murder
Explanation:the man was no longer dangerous to her since he was lying down and the knife had fell down so this is voluntary manslaughter as the cook was driven by the emotions at the moment of being nearly killed. Even though beating the man as self defence can be justified however after the man fell and lost the knife that was the end of self defence ,killing him when a man is already lying down and defenceless can not be justified since it can be said that the cook was out of harms way when she killed the man.