Place this clip at the reaction beat after your blame setup, opening the sequence with a WhatsApp message sound to stage the chat context. Follow it immediately with a Kiko laugh so the accusation gets answered, then cut to your next scene without adding another voice line.
About this sound
This clip is a spoken Portuguese voice line repeating the accusation that one unnamed thing killed both Maradona and Walter. The sheer scale of the blame, aimed at two very different names in one breath, gives it an absurd and incredulous feeling, like a conspiracy theory compressed into a single throwaway remark for friends to react to.