The present study investigated the differences in patterns of social information processing (SIP) among adolescents with two trajectories of offending: group 1 (G1) composed of adolescents with a trajectory of major persistent offenses, which includes illegal acts considered violent; group 2 (G2) composed of individuals with a trajectory of minor persistent offenses, in which there is no escalation of the gravity of the offenses; and a comparison group (G3) with adolescents without involvement in offenses. SIP is one of the theoretical models most widely evoked to study and explain violent behavior in children/adolescents, in regarding the psychological processes that underlie behavior, specifically the cognitive nature. The participants answered a self-report delinquency interview and a SIP measure protocol. The results showed differences between the groups of offenders (G1 and G2) and the comparison group (G3) on the SIP pattern related to the competent responses. G1 and G2 revealed a SIP pattern poorly associated with socially competent behavior. However, G1 presented an SIP pattern more associated with the emission of aggressive behaviors. This pattern, although also present in G2, is more evident for those adolescents who reported committing crimes with the use of violence against people.