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.
Mr. Jenner. That was a half hour ahead of the time——
Mr. Mamantov. This was approximately, I would say——
Mr. Jenner. 4:30?
Mr. Mamantov. 4:30.
Mr. Jenner. I'll get into that background in a little while, Mr. Mamantov. You did go, then, to the Dallas City Police Station?
Mr. Mamantov. They sent a police car.