He admitted his actions in a videotaped interview, she said.
The information included videotaped interviews with some of the several dozen suspects.
But in a subsequent videotaped interview, he admitted taking part, too.
The timing of the videotaped interview is a key concern.
But because of technical problems with a videotaped interview the lawyers want to show, the judge put off her testimony before the jury until Monday.
Several of the videotaped interviews are on the museum's Web site (www.mtr.org/perspectives).
She admitted that much on the videotaped interview with the prosecutor.
There are telling fragments of videotaped interviews with old unionists and others.
"I was hushed up" she told investigators in a videotaped interview.
The company, which allows clients to screen potential dates through videotaped interviews, charges $1,000 to $2,500 a year.