Moments ago, you pulled up to the Willard InterContinental hotel and parked in an outside lot. The weather is warm, a bit dry. You headed up the the murder scene, up on the fifth floor. As you walked down the hallway, you saw men milling about near one room. After coming closer, you saw the police tape over the door, but plainclothes men and women are moving in and out of the room and talking.
You meet FBI Agent Nora Brady, she matches her picture: an African American woman in her late thirties: sharp eyes, plain face, wavy long hair pulled back, dressed smartly. Once you flash some credentials (like what, exactly? A BPRD card? Just the say so of being with BPRD? What do you use?), she shares some details of the case while moving the tape up so you can enter the room, "Mistaugh checked into the room by himself, we've canvassed the hotel staff and guests, found no one who saw him with anyone. The rest of the floor was unoccupied."
By now, you've all entered the room, the smell of blood is strong here. You get a closer look at all the symbols on the walls. The body has been taken away. Nora continues talking this whole time, "The hotel rents the entire floor to a CIA holding company on a standing basis, it is often unoccupied. The arrangement was maintained by Mistaugh himself. Also, at his request, there are no security cameras on this level. Mistaugh's clothes and personal effects, keys, wallet, jewelry, watch, all gone. He was identified by Harley Porter, the night manager. Estimated time of death was 3 AM."
She walks over to the side of the bed, pointing at something beside it, a wastebasket, "Evidence collection found a used condom in there. Otherwise, the room is clean of trace evidence."
The intro may not have been clear, but Nora is an FBI agent, you are investigating a murder of Mistaugh, a CIA agent.