The Best Way Out Is Always Through - S3-E22
Continuity mistake: When Bell and Holmes are looking at the files, there's an open book next to Bell. When he starts texting, with both hands, the book becomes closed in one shot and then back open in the next.
Answer: I'm the same person who asked this question. I discovered it was Molly Price whom I recognized from Third Watch.
Cathrine R
It should be noted Donna was Jim Fowkes‘ secretary. Donna killed Peter.
Bishop73