Troy Roberts

And time took its toll. Sabrina and Andrea's father, George, received a devastating diagnosis. He had Alzheimer's.

And time took its toll. Sabrina and Andrea's father, George, received a devastating diagnosis. He had Alzheimer's.

And time took its toll. Sabrina and Andrea's father, George, received a devastating diagnosis. He had Alzheimer's.

Finally, in September 2012, 10 years after the DNA hit and almost 32 years after the notorious murders, the trial of Richard Hirschfeld was set to begin.

Finally, in September 2012, 10 years after the DNA hit and almost 32 years after the notorious murders, the trial of Richard Hirschfeld was set to begin.

Finally, in September 2012, 10 years after the DNA hit and almost 32 years after the notorious murders, the trial of Richard Hirschfeld was set to begin.

The now 63-year-old Richard Hershfield enters court in a wheelchair, barely resembling the menacing figure he once was. Why didn't you want to be in the courtroom to hear all that testimony? Some of it graphic in nature.

The now 63-year-old Richard Hershfield enters court in a wheelchair, barely resembling the menacing figure he once was. Why didn't you want to be in the courtroom to hear all that testimony? Some of it graphic in nature.

The now 63-year-old Richard Hershfield enters court in a wheelchair, barely resembling the menacing figure he once was. Why didn't you want to be in the courtroom to hear all that testimony? Some of it graphic in nature.

The prosecution has a powerful case against Hirschfeld, starting with the DNA match.

The prosecution has a powerful case against Hirschfeld, starting with the DNA match.

The prosecution has a powerful case against Hirschfeld, starting with the DNA match.

...does not deny it's Hirshfield's DNA on the blanket, but insists it could have gotten there some other way. His DNA just magically appeared on its own on this blanket.

...does not deny it's Hirshfield's DNA on the blanket, but insists it could have gotten there some other way. His DNA just magically appeared on its own on this blanket.

...does not deny it's Hirshfield's DNA on the blanket, but insists it could have gotten there some other way. His DNA just magically appeared on its own on this blanket.

Prosecutor Dawn Bladet points out Sabrina's DNA was found mixed in with Hirschfeld's, evidence of a sexual assault.

Prosecutor Dawn Bladet points out Sabrina's DNA was found mixed in with Hirschfeld's, evidence of a sexual assault.

Prosecutor Dawn Bladet points out Sabrina's DNA was found mixed in with Hirschfeld's, evidence of a sexual assault.

Then there's Joseph Hirshfield's suicide note, implicating his brother Richard in the murders.

Then there's Joseph Hirshfield's suicide note, implicating his brother Richard in the murders.