 This fact prompts Wolfe to summon the principals to his office again and question them about their movements over a time period covering both murders.He returns Jarrell's retainer, then calls Cramer to get permission for Archie to copy the statements they have given the police, reassuring him that Wolfe does not currently know the identity of the murderer.Lois tries to persuade Archie to corroborate a claim that she took Jarrell's gun and threw it in a river in order to prevent anyone from using it, but he quickly realizes that she is not telling the truth.