Julio remembers that he heard Bodega, Nazario, and Sapo talking about Salazar earlier, meaning that they are likely responsible for the murder. So far, Quiñonez has implied that the men dabble in drug-related crime, but here, he ups the stakes: it seems that they are also involved in a murder. This is a much bigger moral issue for Julio (and, by extension, the reader) to wrestle with in weighing what level of crime is justified in the name of activism.