It was kind of a shock to see that Ruth Cavin of St. Martins had died. She bought and edited two of my books - Learning to Fly: A Novel and Heart-Shaped Box (Claire Montrose Series).
Ruth basically edited everyone in the mystery business, at least once or twice. Many eventually moved on to other houses (I would guess for higher advances), but she had a hand in so many careers, including those of Laurie King, Steve Hamilton and Charles Todd. Her last deal on Publishers Marketplace was listed just a year ago.
Read more about Ruth here.