Whodunnit? 'Whodunnit?'s killer takes its fourth victim in Don 07/08/2013 Whodunnit? "killed off" one of its 10 remaining guests during Sunday night's broadcast of the new reality mystery competition's third episode. Read More RELATED NEWS 'Whodunnit?' crowns Kam Perez winner and unveils Cris Crotz as killer 'Whodunnit?'s killer takes its next victim in Ronnie'Whodunnit?'s killer takes its next victim in Geno TAGS: