Lt. Columbo:  Uh - oh . Another bad one , huh , Doc ?
Dr. Bart Keppel: Yes , that 's a bad _ one _ !
Lt. Columbo: Let 's see if I can help you find that !
Dr. Bart Keppel: Why do n't you come to the point , Lieutenant ?
Lt. Columbo: The real point ?
Dr. Bart Keppel: Yes . The real one . That one . Go ahead . Go ahead .
Lt. Columbo: I think you 're guilty of homicide . I think you killed Mr. Norris , and I think you killed the projectionist .
Dr. Bart Keppel: Lieutenant , how could I have killed Mr. Norris , or anybody else , when I was standing in plain view of everyone in the screening room at the time ?
Lt. Columbo: You could n't .
Dr. Bart Keppel: No .
Lt. Columbo: So you were n't .
Dr. Bart Keppel: Yes ... but they DID see me .
Lt. Columbo: No , sir . They heard you . And you had a tape recorder . And it was dark .
Dr. Bart Keppel: Wait a minute . Let me get one thing straight . I was told that all of the testimony was unanimous . Everyone in the room swore they saw me there . Is that true ?
Lt. Columbo: Yes , sir .
Dr. Bart Keppel: Has someone CHANGED their testimony ?
Lt. Columbo: No , sir .
Dr. Bart Keppel: No , they haven't ! Well , when they do , we 'll be able to pursue this fascinating line of speculation . Ah ! Here 's my ball . There it is . I 'll just toss it out a bit ... and no one will ever know ... and I can go on with my game .