Reed's Firefly pendant is on the floor of a stall in the women's restroom of the Hotel Grand, during the Hotel Lobby section of Pittsburgh. It belonged to Colby Reed.
Hotel Keycard
The Hotel Keycard is in the security room in the basement of the Hotel Grand, on the desk by the monitors. You need it to open the door out of the basement.
Note to Staff
The Note to Staff is in a suitcase on the floor at the corner of a hallway in the Hotel Grand. After climbing the ladder, go right and shimmy across the collapsed stairs to reach it.
Abandon Zone Note
The Abandon Zone Note sits on the desk in the office at the far left end of the bookstore's first floor in Pittsburgh.
Accretion
Accretion, issue 6 of Savage Starlight, sits on a coffee table in a lounge on the second floor of the Hotel Grand, during the Hotel Lobby section of Pittsburgh.