In the opening scene, a sight-seeing duo are tracking a black-tailed deer (Latin name: Odocoileus hemionus columbianus) in the vicinity Washington, DC, before locating a human corpse. Black-tailed deer can only be found on four American states (Alaska, California, Oregon, and Washington state) and one Canadian province (British Columbia). The species was formerly also present in Wyoming, but the local population of deer was hunted down to extinction.