You need to read the newish Atavist book, The Devil Underground, by Nadja Drost. Here, Drost has written the best explanation I’ve ever seen of the battle for Antioquia between the Urabeños and the Rastrojos. And has shown herself to be a brave, serious reporter who will stop at nothing to really understand a story. And has given readers an idea of what they buy when they buy gold, particularly Colombian gold. She has also written one of the most beautiful pieces of literary nonfiction I’ve read in a long time. I’ve been reading and writing a lot about Gran Colombia Gold, which is trying to turn Segovia into a normal professional mine. I have been reading about this situation for years, but now I feel like I am about 10 times closer to understanding it — even though this book barely mentions Gran Colombia. It’s well worth your US$3.99. Go read it.
UPDATE: I hadn’t seen this, which shows that a connection between crime and gold may remain present in Colombia.