The Adventure of Caesar's Last Sleep - S1.E20

Inspector Queen is in charge of protecting a mob witness but the witness is murdered before he can testify. Wouldn't you know it, the evidence points to none other than Sgt. Velie. The Inspector must also deal with rivals in the department who feel he's gotten long in the tooth and relies too much on Ellery. Will Ellery be able to figure out the correct solution? Not in this episode, he doesn't.