A black youth's sister was forced into a relationship by her boss. To support her family, she had to maintain this relationship, eventually leading to her suicide after the boss's wife found out.
The boss's wife also went around defaming the black youth's sister, making the youth very angry. He believed the boss and his wife were responsible for his sister's death, and he wanted revenge.
A Chinese youth had a similar encounter. His mother was killed in a hit-and-run by a white youth. However, due to various reasons, the law didn't punish the perpetrator, which left him furious, and he wanted to avenge his mother.
But he also knew that once the boss was killed, the police would definitely suspect him.
So, the two youths exchanged their targets, so that even if the police investigated, they would have alibis and exonerate themselves.
Little Black snapped his fingers, "Exchange murder.
