Mansion Murder

The owner of a mansion was tragically murdered last night. The murderer was one of the three visitors to the mansion: Ian, Jeff, and Kevin. Here are some facts:

1. The murderer arrived later than at least one of the other two visitors.

2. One of the three visitors was the town’s mayor. He arrived earlier than at least one of the other two visitors.

3. The mayor arrived at midnight.

4. Neither Ian nor Jeff arrived after midnight.

5. The earlier arriver of Jeff and Kevin is not the mayor.

6. The later arriver of Ian and Kevin is not the murderer.

Who is the murderer?

Check Braingle.com for the answer.