As a boy in the favela of Cidade de Deus, Lil Dice laughs while he shoots: he watches the older robbers he idolizes, learns their gestures, and takes note that here violence is what rules and what grants status. Grown up and renamed Lil Zé, he becomes the most feared and bloodthirsty boss in the neighborhood. His story is a manual of social learning theory: crime does not travel in the genes — it is learned.
// The theoryCrime is learned like a trade
In 1939, Edwin Sutherland formulated differential association: criminal behavior is learned through interaction with other people, above all in intimate groups, just like any other trade. The techniques of crime are neither inherited nor the product of a defect: they are transmitted. Decades later, Albert Bandura (with his famous Bobo doll experiment) and Ronald Akers rounded out the idea with social learning: we learn by observing models, imitating what the people we admire do, and repeating whatever we see rewarded. No one robs or kills well the first time; someone taught them, and something rewarded it.
Lil Zé is that process turned into biography. As a kid, his models are not teachers or athletes: they are the neighborhood robbers, the only men with power, money, and respect in plain sight. He learns from them through sheer imitation — how to hold the gun, how to impose himself — and his surroundings teach him tirelessly that violence works: it brings status, it brings fear, it brings everything a boy with nothing could want. Every violent act that goes well reinforces the next. There is no moment in his story of "turning bad": there is continuous learning, from childhood, in a school where the only subject with a future is crime. Zé does not break the rules of his world — he learns them to perfection.
Models, imitation, and reinforcement
Social learning identifies the exact ingredients that manufacture a Lil Zé: models to imitate (the criminals he admires), reinforcement of the behavior (violence that brings power and status), and an environment saturated with "favorable definitions" of crime (where killing is not a taboo but a normal path upward). The contrast within the film itself proves it: Rocket, raised in the same favela, has other models — photography, the gaze — and takes another path. The difference between the boss and the photographer is not blood or the neighborhood: it is what they learned and from whom. And that is the theory's best news: if crime is learned, it can also be not learned — or relearned.
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// The subjectThe boy who had only bad teachers
What is chilling about Lil Zé is that his cruelty coexists with his childhood: he laughs like a child while committing atrocities, because in a way he never stopped being the kid who learned that shooting was fun and profitable. There is no guilt or inner conflict in him: violence is, for him, the normal thing, the behavior his world modeled and rewarded from the start. That is the most uncomfortable portrait of social learning — not the monster who chooses evil, but the boy who was only ever placed in front of bad teachers. Zé is not an accident or an exception: he is the star pupil of a terrible school, the one who learned all too well the only lesson his favela had to give. His tragedy is not being born cruel; it is never having had the chance to learn anything else.
Zé Pequeño
// The crackLearning alone?
Social learning theory explains a great deal, but not everything. Its weak point is selection: why does one boy fall in with the robbers and another with the photographer? Learning describes how crime is transmitted, but not fully why some are more exposed than others to those models — that is where personality, family, and opportunity come in. It is also criticized for not explaining impulsive crime well, or crime committed alone, with no models to imitate. And, like any environmental theory, it skirts the risk of diluting responsibility: that Zé learned to kill does not erase his victims. The sound version is the modest one: learning is one of the best-tested mechanisms in criminology — the weight of company and models is enormous — but it acts alongside other factors, not alone.
Changing the models
If crime is learned, prevention is, at bottom, a question of models and reinforcements: which figures a child admires, which behaviors he sees rewarded, which company he has within reach. The lesson of Lil Zé is not fatalistic, but quite the opposite: where the favela offers only robbers as role models, planting other models — a Rocket with a camera, a mentor, a teacher, a way out — can change a kid's whole biography. Mentoring programs, alternative sources of status, the presence of adults who embody another path: all of that is social learning applied. The crime that is taught can also be untaught — and the boy who laughs while shooting could, with other teachers, be laughing at something else.
Three key takeaways
- Social learning (Sutherland; Bandura; Akers): crime is learned like a trade — through interaction, imitation of models, and reinforcement of what works. Lil Zé learns it as a child, imitating the robbers he admires.
- The ingredients: models (the neighborhood criminals), reinforcement (violence brings power and status), and "favorable definitions" of crime. The contrast with Rocket, raised in the same favela, proves the difference lies in what is learned and from whom.
- The crack: it does not explain selection (why do some fall in with the robbers?) nor erase responsibility. But its practical force is enormous: if crime is learned, you can change the models — unteach it.
Sources · further reading
- Sutherland, E. H. (1939). Principles of Criminology. Lippincott.
- Bandura, A. (1977). Social Learning Theory. Prentice-Hall.
- Akers, R. L. (1973). Deviant Behavior: A Social Learning Approach. Wadsworth.
- Bourgois, P. (1995). In Search of Respect: Selling Crack in El Barrio. Cambridge University Press.
Case-file questionsFrequently asked questions
¿Quién es Zé Pequeño?
Zé Pequeño («Zé») es un villano de Ciudad de Dios, analizado en KRIMINIS con la lente de la criminología. As a boy in the favela of Cidade de Deus, Lil Dice laughs while he shoots: he watches the older robbers he idolizes, learns their gestures, and takes note that here violence is what rules and what grants status.
¿Por qué Zé Pequeño se convierte en villano?
City of God and social learning: Lil Zé is not born a killer — he is made one, imitating since childhood the older men he admires in the favela, where violence is the subject everyone takes. Crime as a trade that is taught and learned.
¿Qué teoría criminológica explica a Zé Pequeño?
El caso de Zé Pequeño se analiza desde la Aprendizaje social. Sutherland's differential association theory and the social learning of Bandura and Akers hold that criminal behavior is learned like any other: through interaction with others, imitation of models, and reinforcement of what works. Lil Zé, of City of God, is their stark illustration: a favela boy who learns to commit crimes and to kill by observing and admiring the older criminals, in an environment where violence is the behavior constantly modeled and rewarded. He is no born monster: he is the product of a school — that of a neighborhood where the trade passed down is crime.
