This type of crime has been going on for a long time, it surges and then recedes, in times past the crooks would ride a bicycle and snatch the watches of the person with the arm resting on the window frame at a stop light, I saw it happen on Avenida Reforma to the guy in front of me at the stop light, then they were not violent, today they have a knife and some have a gun, the violence has escalated, as I stated before this does not happen on one corner only at one spot but all over the different areas of the cities, it is so random that the authorities are not able to catch them, some ride motorcycles and others bicycles and some are on foot.
Just be aware of what you do, doors locked and windows rolled up, less chance for the crook, do not try to be the hero because you were in the armed forces and have commando training, your chances of getting hurt go up as age goes up.
navegator