Amnesty condemns Colombia police brutality after scores of protesters killed

He died as he lived, resisting', says mother of young artist killed in Cali, as report claims authorities used systematic pattern of violence' in city

Nicolas Guerrero, a 26-year-old artist from the Colombian city of Cali, took to the streets on 2 May to protest against the lack of opportunities he saw in his country. He had a family in Spain that he had hoped one day to bring to South America. But later that night, after riot police launched a brutal crackdown, he was found lying on the pavement, seriously wounded. He died hours later in hospital.