human death vs fatality

human death and fatality both are nouns.

Word	Noun	Adjective	Verb	Adverb
human death	Yes	No	No	No
fatality	Yes	No	No	No

As nouns, human death and fatality are synonyms defined as:

human death and fatality: a death resulting from an accident or a disaster

human death (noun)	fatality (noun)
a death resulting from an accident or a disaster	the quality of being able to cause death or fatal disasters
	a death resulting from an accident or a disaster