Tomas Ayuso for NPR toggle caption Tomas Ayuso for NPR An anti-violence mural on the wall of a street in Tegucigalpa, the capital city of Honduras. The Biden administration has pledged $4 billion to attack the root causes of out-migration from Central America. Tomas Ayuso for NPR In Rivera Hernandez, one of the most violent neighborhoods in one of the most violent countries in the Americas, a young Honduran man explains the circumstances of the cold-blooded murder of his little brother by a street gang three years ago. Sitting in the living room he shares with a banty rooster, he agrees to tell his story if his family is not identified. He said his brother took a short-cut though rival gang territory—perhaps to go to the bus stop or visit his girlfriend—with tragic consequences.