CuautlaA Spanish exchange student, 21, was stabbed to death.
Morelos state has logged 21 femicides this year, exposing weak prosecution of violence against women.
Femicide is a harsher-sentenced legal category created after homicide cases in Mexico went uninvestigated.
Morelos prosecutor Fernando Blumenkron has yet to name a suspect.
Sources: U.S. News & World Report, Reuters, ThePrint, Free Malaysia Today