Mexico rattled by increasing violence against women

I could not find it in this article but how do they know these acts were carried out because of their gender? The word "femicide" indicates that it is because of their gender and is generally done by a man, so they imply it but give no evidence for it.

Based on there own numbers in the article men are still far more likely to go missing then women. How do these numbers stack up against missing women in American and other LATAM countries? Also are these occurring in towns with more or less cartel activity, one would think the higher the cartel activity the higher the likelyhood of something like this happening.

All that being said I don't disagree that there is an issue in Mexican culture as it relates to violence against women. I grew up in Tucson, AZ and on at least 4 occasions witnessed women being dragged into cars by their hair by a group of armed Mexican men. So long story short this article makes me conflicted, I believe it based on personal anecdotal experiences but still wish to see these numbers in relation to other cities in Mexico as well as other countries.