Murders the easy part. Covering it up? Not so much. Welcome to Hidden Killers with Tony Brusky.

20 stab wounds. That's the number etched into the tragic story of Ellen Greenberg, a 27-year-old teacher whose life ended abruptly in her Philadelphia apartment in 2011.

The case took a shocking turn when it was ruled a suicide,

despite what many, including her own family, argued, were glaring signs of foul play.

Now, in an announcement that has left the public reeling, the Chester County District Attorney's

Office declared that they are unable to move forward with criminal

charges. The decision, delivered with the sterile precision of a legal formality, has done little to

quell the firestorm of questions surrounding Ellen's death. For years, her family has been fighting

against what they see as a gross miscarriage of justice. A suicide?

With 20 stab wounds, some allegedly post-mortem? The numbers defy logic and the circumstances

have fueled speculation that goes beyond the usual courtroom drama. If nothing else, it forces

us to ask, what happens when the pursuit of justice collides with the limitations of the law?

The Greenberg case has long been a puzzle, a perfect storm of conflicting forensic opinions, institutional red tape, and a narrative that seems too implausible to accept.

Alan was discovered slumped against her kitchen cabinets, a knife still lodged in her chest.

The scene at first glance suggested a violent end, but at whose hand?

The initial homicide ruling seemed to confirm the worst, only to be inexplicably overturned

by the medical examiner's office.

Suicide, they said.

Case closed, or so they thought.

But this was far from over.

Ellen's parents, Josh, and Sandra Greenberg couldn't reconcile the coroner's conclusion with the grizzly facts.

They sought answers, turning to private forensic experts

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