Michael Paine was into gadgets - he worked at Bell Helicopter. He said the camera was his.
In Michael Paines testimony, I can't find any specific mention of a "minolta" camera but Michael did say that a plainclothesman collected his cameras.
Mr. PAINE - Yes, plainclothesman, wearing black hats; one of them had one of those Texas hats. He collected all the useless stuff in our house, he went around and collected all the files of Ruth, and a drawer of cameras, mostly belonging to me.JohnM