Place it at the end of a build-up in a reaction edit, letting a sudden suspense sound lead straight into it, then follow with a stunned reaction clip to sell the group's response without adding extra dialogue over the top.
About this sound
A short voice clip lasting about three seconds in which a calm speaker asks, 'Want to talk about murders?' The flat, casual delivery makes the dark question feel both unsettling and darkly funny, like a true crime joke dropped without warning into normal conversation.