Here are some of the clues for solving the mystery:
- When the elevator man saw Mr. Kelley, Mr. Kelley was bleeding slightly, but he did not seem too badly hurt.
- Mr. Kelley had destroyed Mr. Jones' business by stealing all of his customers.
- The incident occurred in an urban neighborhood, the type where many violent acts occur.
- Mr. Kelley's body was found in the park.
- The elevator man went off duty at 12:30 a.m.
- Police were unable to locate Mr. Scott after the murder.
- Miss Smith said that the police don't care about the spread of illegal drugs.
- The elevator man said that Miss Smith was in the lobby of the apartment building when he went off duty.
- Mr. Kelley had been dead for one hour when his body was found, according to a medical expert working with police.
- The bullet taken from Mr. Kelley's thigh matched the gun owned by Mr. Jones.
- Mr. Kelley's bloodstains were found in Mr. Scott's car.
- Miss Smith saw Mr. Kelly go to Mr. Jones apartment building at 11:55 p.m.
- The elevator man was twice convicted for DWI.
- Mr. Jones had told Mr. Kelley that he was going to kill him.
- The knife found in Miss Smith's yard had Mr. Scott's fingerprints on it.
- Miss Smith said that nobody left the apartment building between 12:25 a.m. and 12:45 a.m.
- An empty crack vial was found outside the apartment house.