 And Amelia Cardway? She was Mrs. Wilcox's maid. Now, Johnson, the murder of Stella didn't come exactly as a surprise to me. Why? She poisoned her stepmother with the help of the maid, Amelia Cardway. But why am I involved in all this? Let's not fool each other. Somehow you discovered that Stella murdered her stepmother. But after ten years, you can't pick up any evidence, and you know it.