This... S:
I'll translate it for you:

WARNING QUERÉTARO (the city I live in)
Girls, you must be noticed there's something big going on...
People are kidnapping college girls in between 18-28 years old
for white traffic, in public places and morning hours (when we usually attend school)
Morning, midday and afternoon.
There has been already several disappeared girls in Querétaro, 
all of them from well known universities.
Something similar to what happened in Cd. Juárez (the world's most dangerous city, yes, and it's in Mexico)
Be careful and don't go around alone,
wherever you are, take care,
avoid getting near cars or trucks that ask for directions,
IMPORTANT TO DISTRIBUTE THIS IMAGE!

So if you don't know what happens in Cd. Juárez here (I took this from Wikipedia):
''The phenomenon of the female homicides in Ciudad Juárez, called in Spanish feminicidio ("femicide") involves theviolent deaths of hundreds of women and girls since 1993 in the northern Mexican region of Ciudad Juárez, Chihuahua, a border city across the Rio Grande from the U.S. city of El Paso, Texas. The number of murdered women in Ciudad Juarez since 1993 is estimated to be more than 5000. The murders of females in Ciudad Juárez since 1993 have received international attention, primarily due to perceived government inaction in preventing violence against females and bringing perpetrators to justice. Crime and violence are prevalent in Ciudad Juarez and both males and females die violently in the region; however the high rates and nature of the murders of women and girls in Juarez expresses gendered oppression, and is a manifestation of inequality of gender relations, patriarchal hegemony, social class, and impunity.''

Of course it's not 5,000, there has been way more than that, maybe even more than 15,000. But police or government do nothing about it, some girls doesn't even appear in the lists and they were never found.

guys... I'm worried, this place was suposed to be one of the safest ones in my country! what will I do?! S:
There has been this girl from first semester of my school (a med student, like me) that has been unreachable since morning and everyone's scared, classes were't suspended and we must attend school normally.
But then I knew from three more from other careers that haven't showed up at home since they came to school as well. S:
This is big, seriously, the army is here all around which only makes us know it's true, 
there has been this fight already with guns and stuff, my university was closed and there were hundreds of militars around with their guns and we could hear everything... It's awful, I don't want this!
I'm terrified...
I don't like living alone! TT_TT

If I live in one of the safest places in Mexico... how the hell are the violent ones? seriously, how can people stand this? living afraid everyday because you can get killed or kidnapped just like that... It's so ing ridiculous!

Someone please take me away from here! TT_TT