Place this clip right after the reveal in your edit, then follow it with the Za Warudo Time Stop Sound Button for a dramatic freeze, or end the sequence with the JoJo To Be Continued Sound Button to leave viewers hanging.
About this sound
This is a shortened clip of Light Yagami laughing, a sustained maniacal cackle lasting just under six seconds. It feels triumphant and unhinged, like a villain who thinks he has already won and wants everyone to hear it. The laugh comes from Light in the Death Note anime series.