BR2-09 The dark side of the city

January, 17. It's Martin Luther King's day. Nat Marley was a private detective. One day, he got a trust for Curtis Wilson. His sister, Dionne worried about her husband, Ellis. Ellis was so lively, but he was scared for something lately. Wilson asked the reason why Ellis was so scared. At first, Marley visited the pet shop Ellis was managing, and he got information about Ellis delivered pets for customers. Next day, He waited for Ellis with his colleague, Joe in his car. He saw Ellis and two young men　loaded a car with paper bags. Marley chased the car, and saw they were delivering at an apartment which prohibited to have pets. After the day, the incident was happened. A resident who lived in the apartment died because of a cocaine.
Why the resident died? Did Ellis involve this incident?
I want you to read it!