Assignment:
Sharky, a leader of the underworld, was killed by one of his own band of four henchmen. Detective Sharp interviewed the men and determined that all were lying except one. He deduced who killed Sharky on the basis of the following statements:
a. Socko: Lefty killed Sharky.
b. Fats: Muscles didn't kill Sharky
c. Lefty: Muscles was shooting craps with Socko when Sharky was knocked off.
d. Muscles: Lefty didn't kill Sharky.
Who did kill Sharky?
Provide complete and step by step solution for the question and show calculations and use formulas.