And consider how other nations "Cook the Books". The U.S. DOJ/FBI stats list all homicides as the intentional death of another that wasn't accidental or natural in cause.
The U.K. lists only "murders" that were convicted as murders etc. Manslaughter and lesser pleas/convictions are "something else".
Japan, someone kills his family, then commits suicide, it's swept under the rug as "four suicides" etc.