What investigators learned after exhuming body of Stacey Castor's first husband

Police exhumed Michael Wallace's body in September 2007 and determined that he did not die seven years earlier of a heart attack -- he had been murdered.
1:36 | 02/08/19

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Transcript for What investigators learned after exhuming body of Stacey Castor's first husband
From September 2007. The detectives get an order for an explanation. Of husband number watts Michael want to. Michael Wallace's body would be soon in order to. And I understand they're saying. Noise I hope he was killed this comes out I hope there something there. Suddenly you have this dramatic scene playing out in the cemetery they are digging up the body. Michael Wallace who is buried right next of the second husband David castor. And dirty zooming the body and one and now believe repeal anything more about how he might. A few days later I was walking through the cripple investigations division and are see the full cost of medical exam. Police and pay we just got done with the officers have the results for you. And said guess what I. He's loaded with crystals. When you are poisoned. We're any trees. Crystals form in your organs. And they don't ever go away and that was one of the reasons why we exhumed am blessed so that we can find out if those crystals course though there. So when you do an autopsy on someone. Ingesting antifreeze you can see the slides of various organs it looks Psycho gold chain western minds of Maurice whose little beautiful crystal pumping approaching. Those telltale crystals. The same crystals when you look side by side with DB castor from the end freaks. They knew at that point and double homicide Stacey castor. Probably. Until bowl yeah.

This transcript has been automatically generated and may not be 100% accurate.

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