Final answer:
Lars is a Secondary Victim because he experiences disruptions and emotional stress as a result of Quinn's direct victimization from being mugged.
Step-by-step explanation:
The situation described indicates that Lars is a Secondary Victim. A secondary victim is someone who suffers from the indirect effects of a crime, which in this case is Quinn's trauma from being mugged. Lars experiences disruptions in his own life due to the nightmares and mood changes of his partner, Quinn, who is the direct victim of the mugging. Secondary victims can experience a range of emotional and psychological effects due to their close relationship with the primary victim.