First of all, as examples of homicide by repeat offenders, the following five cases are introduced as sample cases with the most common criminal motive and cause that are discussed later in this chapter, Section 2-2. “First-time case” means the first homicide committed by the repeat homicide offender (hereinafter the same in this chapter), and “repeat case” means the second homicide case (hereinafter the same in this chapter). Amongst the 128 subjects, there were eight persons who had three records of homicide, for whom the analysis was made treating the second homicide as “first-time case” and the third homicide as “repeat case”. There were no persons with more than four homicidal cases.

Case 1: Homicide with anger and passion under intoxication with alcohol
             First-time case
                        At a restaurant, a quarrel with an acquaintance escalated to a fight where the offender hit the
                        other's head more than ten times in an attempt to kill but failed.
             Repeat case
                        While drinking alcohol, the offender became enraged with the victim who was another
                        customer, claiming that the victim glared at him persistently. The offender went to fetch his gun
                        and returned to the scene, shoving the gun at the victim with threats. Believing the victim
                        insulted him by taunting to shoot if possible pointing to his own stomach, the offender shot and
                        killed the victim.
Case 2: Homicide in antagonistic fights between Boryokudan Group
             First-time case
                        In conspiracy with a fellow Boryokudan member, the offender ambushed a rival Boryokudan
                        member on the street and shot him to death.
             Repeat case
                        Hearing that his Boryokudan leader's life was the target of the leader of another Boryokudan,
                        the offender conspired with a fellow Boryokudan member, shot and killed the other
                        Boryokudan leader.
Case 3: Homicide by revenge/grudge against neighboring resident
             First-time case
                        Disturbed by a neighbor who frequently disparaged him, the offender became enraged when
                        the neighbor yelled at him, and killed the neighbor using a sickle he was carrying.
             Repeat case
                        When accused of cutting a barb wire of neighbor's home without permission of the neighbor
                        with whom he had had troubles repeatedly, the offender brought out a kitchen knife, stabbed
                        and killed the neighbor.
Case 4: Crime of passion (troubles with girlfriend)
             First-time case
                        Unable to trust his girlfriend, the offender proposed to die together rather than to break up.
                        Upon being turned down, the offender strangled her with a cord to death.
             Repeat case
                        Suspicious that his girlfriend was dating with another man, the offender accused her and, upon
                        being shunted, the offender became desperate, stabbed her with a kitchen knife to death.
Case 5: Homicide for greed (homicide at the scene of a robbery, etc.)
             First-time case
                        Hard-pressed for repayment of debts, the offender intruded into an office with the intent to
                        steal, but was discovered by the victim. The offender attempted to kill the victim by strangling
                        the victim with a towel and stabbing the victim's abdomen but failed.
             Repeat case
                        In order to obtain money for living and entertainment, the offender broke into the victim's
                        resident but was discovered by the victim while searching for money, etc. To escape from
                        being arrested, offender stabbed the victim to death with a knife in the kitchen and robbed
                        money, etc.