102 Royalty-Free Audio Tracks for "Killer"

This is a recording of a manic, non-melodic whistle processed with convolution reverb. Good for scary themes, like when the killer is approaching.

Is it impending doom, torture or just a titillating bdsm session? a serial killer?. I'm voting for all of the above. Maybe an agent about to extract information. This was extracted from an existing audio file that was recorded in a little shack on a pacific island.