Kelly banged her fist on the steering wheel and apologized to the Fiat. “It really threw me when I first met this prim, plain woman who badly needed a makeover. And all I could think was, how did you land two husbands and a lover? You must be great in bed.” Kelly spurted out a laugh.

Sherlock repeated slowly, “You sensed something was off with her, Kelly, sensed there was a lot more going on with her than she showed to the world. That’s a powerful feeling, and it can be the best clue we’ve got. What interests me is you told me Storin has traveled from New York to Washington dozens of times in the past three years. Planes, trains, automobiles. But you said you didn’t know where she goes, or why.”

Kelly said, “We do know she took Dr. Madison with her five or six times when they were together, so everyone’s thinking it has to be some kind of convenient hideaway where they wouldn’t be recognized. Of course we examined Dr. Madison’s records, Storin’s as well, but we don’t know where they stayed. Washington, Maryland, Virginia? We don’t know. We’re stuck, Sherlock. We have only a bone-deep knowledge she’s guilty of multiple murders. We have no witnesses, no gun, nothing I can grab on to, nothing to shake it out of her, and believe me, I’ve tried. Her lawyer, Abel Clooney, is a powerhouse, articulate, and he protects Storin, treats her like she’s Mother Teresa. Makes you want to kick his capped teeth off. You’ll meet him.”

Sherlock laughed. “He’s expensive, I gather?”

“Costs the moon. She’s the top in her field, lots of substantial commissions from the properties she sells, so she can afford him. I can’t dispute it, she does have a very healthy bank account.”

Kelly fell silent as she passed a slower SUV.

Sherlock watched Kelly tap her gloved fingers on Baby’s steering wheel. She said, “I wonder why she murdered the wife and the neighbor? Why didn’t she kill only Dr. Madison?”

“Differing ideas about that,” Kelly said. “My opinion is Storin hated the wife, decided she was the only stumbling block to true love and had to be removed. Or she believed Dr. Madison betrayed her—that fits with her murdering her two ex-husbands—and the wife was bonus points. Or she wanted to murder them both. You’ll look, tell me what you think. But it’s obvious Mrs. Madison was shot first.

“Bottom line, I can’t let her get away with murdering three people, five counting the ex-husbands. I know who she is, Sherlock, what she is, and that’s a psychopath, a stone-cold killer.”

Kelly signaled, steered the Fiat around an eighteen-wheeler, earning a honk from the driver and a thumbs-up.

Sherlock thought about this. “Angela Storin owned a Walther PPK, had a license?”