On January 23, a picture of a young man who had been hit by Mexico City police officers and thrown into a patrol car, and whose whereabouts since then were unknown, began to circulate on Facebook.
It all started when Marco Antonio - the missing young man - and a friend of his were getting back from a visit to a museum. They were walking along a street in the north of Mexico City when they came across a wall with a graffiti that caught their attention and Marco Antonio asked his friend to take a picture of him standing in front of it.
