This is the best summary I could come up with:

Last year, for the first time, an artist from the area was allowed space to paint a mural by the informal group who control the graffiti.

On hills in the outskirts of Medellín, Comuna 13 was the stronghold for violent drug cartels fighting for a stake in the multibillion-dollar cocaine empire run by kingpin Pablo Escobar.

In 2002, a controversial military operation brought an end to the power struggle – at the cost of many civilian deaths, including those of children, and the displacement of thousands.

Her tag, the initials ESA, can be seen along the main tourist walkway where the male artists’ murals cover the walls – a deliberate move, says Pino.

As part of efforts to transform Comuna 13, the government installed outdoor escalators in 2011, improving access to the sprawling hillside neighbourhood and bringing in a more stable police presence.

Tourist numbers grew steadily, too, drawn to the hip-hop culture and history, and attracting commercial interest as local people and outsiders realised that there was money to be made from graffiti.

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