The Arc of Proof

I looked out the kitchen window. Chicago, grey and indifferent, going about its morning the way it always did regardless of what was happening inside any particular house.

"Send me the detective's direct line," I said. "I'll call within the hour."

We spent forty minutes building the timeline together — Zainab on one end with her legal precision, me on the other with Vance's raw data, the two disci