20/20 returns for Season 47 on September 20, 2024.   Season 47  Episode 3 is titled “The Killer Down The Hall” Here is the synopsis ” Romantic jealousy leads to murder, and detectives discover the killer was closer than they … Continue reading The Killer Down The Hall S47Ep3 Preview via @stacyamiller85 @ABC2020 @ABCNetwork #TamikaHuston