Christina Parcell's Sister

John Mello says he didn't arrange for the mailings to be sent out. Did you have those images mailed?

John Mello says he didn't arrange for the mailings to be sent out. Did you have those images mailed?

Two and a half months after the mailings were sent, Christina Purcell is murdered. But it turns out the man so many people seem to suspect could not have been the killer.

Two and a half months after the mailings were sent, Christina Purcell is murdered. But it turns out the man so many people seem to suspect could not have been the killer.

And then, a huge turning point in the case, thanks to a neighbor's ring camera.

And then, a huge turning point in the case, thanks to a neighbor's ring camera.

And a shocking arrest. But it's not what you think.

And a shocking arrest. But it's not what you think.

Police are investigating Christina Parcell's murder. Her fiance, Bradley Post, tells them he's convinced John Mello, despite being in Italy, should be the prime suspect.

Police are investigating Christina Parcell's murder. Her fiance, Bradley Post, tells them he's convinced John Mello, despite being in Italy, should be the prime suspect.

Although authorities have their suspicions about Bradley Post himself, their investigation seems to be pointing away from him.

Although authorities have their suspicions about Bradley Post himself, their investigation seems to be pointing away from him.

Even though he expresses some nervousness, Post continues to work with police.

Even though he expresses some nervousness, Post continues to work with police.

But then investigators stumble upon what they claim is evidence of an entirely different crime.

But then investigators stumble upon what they claim is evidence of an entirely different crime.

According to court documents, Post had a high volume of child pornography on his phone and electronic devices. He has not yet entered a formal plea to those charges.

According to court documents, Post had a high volume of child pornography on his phone and electronic devices. He has not yet entered a formal plea to those charges.

So although Bradley Post is now facing some serious charges, police still don't think he's the person who killed Christina Parcell. And they now have a critical clue in the hunt for who did. As you start to go looking for evidence, what's the first thing that you do outside of the home? Cameras. Cameras. So where were the first cameras that you found?

So although Bradley Post is now facing some serious charges, police still don't think he's the person who killed Christina Parcell. And they now have a critical clue in the hunt for who did. As you start to go looking for evidence, what's the first thing that you do outside of the home? Cameras. Cameras. So where were the first cameras that you found?