Marcha de la Marihuana en Medellín

Men prepare a marijuana joint during a demo for its legalization, in Medellin, Antioquia department, Colombia on May 2, 2015. The demo is against drug trafficking and for the self-cultivation for medicinal and recreational purposes. AFP PHOTO/Raul ARBOLEDA

Youngsters smoke marijuana during a demo for its legalization, in Medellin, Antioquia department, Colombia on May 2, 2015. The demo is against drug trafficking and for the self-cultivation for medicinal and recreational purposes. AFP PHOTO/Raul ARBOLEDA

A man smokes marijuana during a demo for its legalization, in Medellin, Antioquia department, Colombia on May 2, 2015. The demo is against drug trafficking and for the self-cultivation for medicinal and recreational purposes. AFP PHOTO/Raul ARBOLEDA

men prepare marijuana during a demo for its legalization, in Medellin, Antioquia department, Colombia on May 2, 2015. The demo is against drug trafficking and for the self-cultivation for medicinal and recreational purposes. AFP PHOTO/Raul ARBOLEDA

Artists perform during a demo for the legalization of marijuana in Medellin, Antioquia department, Colombia on May 2, 2015. The demo is against drug trafficking and for the self-cultivation for medicinal and recreational purposes. AFP PHOTO/Raul ARBOLEDA

A man smokes marijuana during a demo for its legalization, in Medellin, Antioquia department, Colombia on May 2, 2015. The demo is against drug trafficking and for the self-cultivation for medicinal and recreational purposes. AFP PHOTO/Raul ARBOLEDA

A man smokes marijuana during a demo for its legalization, in Medellin, Antioquia department, Colombia on May 2, 2015. The demo is against drug trafficking and for the self-cultivation for medicinal and recreational purposes. AFP PHOTO/Raul ARBOLEDA

Men prepare marijuana during a demo for its legalization, in Medellin, Antioquia department, Colombia on May 2, 2015. The demo is against drug trafficking and for the self-cultivation for medicinal and recreational purposes. AFP PHOTO/Raul ARBOLEDA

A woman smokes marijuana during a demo for its legalization, in Medellin, Antioquia department, Colombia on May 2, 2015. The demo is against drug trafficking and for the self-cultivation for medicinal and recreational purposes. AFP PHOTO/Raul ARBOLEDA