Please respond to the below questions based on Chapters 1 (Nature and Sources of Law), 2 (The Court System and Dispute Resolution) and 11 (Nature and Classes of Contracts), as well as our class discussions so far. Use full sentences and be sure to state the principles of law that apply to the facts in the questions.

1. Mika is the sheriff in an old western town. After the town's bank is robbed by Jesse James, Mika posts a notice saying: "Wanted Dead or Alive - Jesse James. $5,000 reward." If Nithin finds and captures Jesse James and brings him to Mika, does Mika have to pay Nithin $5,000? Why or why not? Please discuss any laws that apply to this situation.