In this episode of Straight to the Case, we unravel one of the strangest and most unsettling poisoning cases in modern true crime — the death of David Castor.

What was first ruled a suicide quickly unraveled into something far more sinister. Antifreeze. A staged scene. A so-called confession letter that raised more questions than answers. As investigators dug deeper, they uncovered a chilling pattern of manipulation, control, and calculated deception that turned a quiet family home into the center of a deadly mystery.

We walk through the timeline of David’s final days, the forensic red flags that couldn’t be ignored, and the shocking truth that ultimately came to light — a truth that would expose a plot years in the making and force everyone involved to ask: how far can someone go to get away with murder?

This is Poisoned: David Castor — a case where nothing is accidental, and the truth was hidden in plain sight.