Before we dive in, don’t forget—you can access all our shows, bonus content, and exclusive deep-dive episodes on the Skoob App, and through https://linktr.ee/skoob.ai

In this chilling episode of Serial Killer Files by Skoob, host Arthur Morgan uncovers the terrifying true story of Adolfo Constanzo, the Narcosatanist cult leader who fused drug cartels, occult rituals, and human sacrifice into a deadly belief system.

Set against the backdrop of Spring Break 1989, this episode follows the disappearance of Mark Kilroy, an American college student whose murder exposed one of the most disturbing cults in modern history. From Palo Mayombe rituals and cartel protection spells to mass graves and ritual killings near the Texas-Mexico border, this case reveals how belief, fear, and power collided with horrifying consequences.

This deep dive explores the psychology of cult control, the rise of Narcosatanism, and how superstition infiltrated organized crime—ending in betrayal, bloodshed, and the violent downfall of “El Padrino” himself.

Follow Serial Killer Files by Skoob on Apple Podcasts and Spotify, and hit subscribe on YouTube for more episodes like this.

Tune in for more thought-provoking true crime stories, psychological deep dives, and cases that stay with you long after the episode ends.