Frey Has No Regrets on Taping Peterson

Amber Frey has no regrets about helping police record her telephone conversations with Scott Peterson, the now-convicted killer with whom she was romantically involved.

Frey and authorities say she was involved in a romantic fling with Peterson when his pregnant wife, Laci Peterson, disappeared on Christmas Eve 2002. Frey has claimed she did not know initially that Peterson was married.

Peterson, 32, was convicted in November of first-degree murder in Laci's death and second-degree murder in the death of the unborn baby, whom the couple planned to name Connor. A judge in Redwood City, Calif., today may affirm a jury's decision to give Peterson the death penalty for the killings.

Frey, a massage therapist from Fresno, was a star prosecution witness during her six days on the stand. From her testimony and her wiretapped phone conversations with Peterson, jurors learned the fertilizer salesman told her he wanted them to be together and constructed elaborate lies to keep his marriage secret. During one phone conversation -- which took place as investigators and volunteers were searching for Laci -- Peterson told Frey he was in Paris on a business trip.

"I'm thankful that the opportunity that I was able to cooperate with the Modesto Police Department was there," she told ABC News' "Good Morning America." "I feel that it was a tool that was used that helped bring justice for Laci and Connor."

Frey admits she has "mixed emotions" on the issue of the death penalty, although at least one member of Laci's family has said he approves of the jury's recommendation to impose a capital sentence.