Mr. MAMANTOV. This was a period of five minutes, I would say, maximum.
Mr. JENNER. This, then, was your first contact with or connection with
this tragedy?
Mr. MAMANTOV. That's correct.
Mr. JENNER. And you then came to the Dallas City Police Department, did
you?
Mr. MAMANTOV. Right. However, I called FBI about half an hour before
the police called me. You see, I was in the dentist's office when I
heard Lee Oswald's name, and when this name appeared on the radio, I
felt it is my duty to notify the FBI that I know of him and knew fairly
well his background here in Dallas.
Mr. JENNER. And you so advised the FBI?
Mr. MAMANTOV. Yes.