When Does Killer Siblings Season 3 Premiere? Oxygen Renewal & Release Date November 6, 2020 by TVDatesWatch.com Leave a Comment Is the TV show Killer Siblings cancelled or renewed? Will Killer Siblings return for a new season? We watch the latest TV premiere dates and season premiere dates so you don’t have to. Get the official Killer Siblings Season 3 release date with TVDatesWatch.com. Check out the official Killer Siblings series status and cast details right below: Status of Killer Siblings On Air/Ongoing on 1 RELEASE DATE: PENDING Do you love Killer Siblings? Find out more details and leave a review right on the Killer Siblings show page!