A police officer finds a man dying in one of the city parks. He has several stab wounds to his chest, and his skull is fractured. Just before dying, the man manages to say that he was the victim of an assault and robbery. Upon investigation, the officer finds a bloodstained shoemaker’s awl nearby. Of the following, the most useful assumption to make first in attempting to solve the crime is that

Most Police Officer exams test candidates for the following skills:
Deductive Reasoning
Inductive Reasoning
Spatial Orientation
Memorization
Visualization
Reading Comprehension
Verbal Expression
Mathematical Reasoning
Problem Solving
Written Expression