Brittany Tom

But by whom? A week later, investigators came up with a stunning theory. Paul Canero had killed his brother and his family and then set fire not only to his brother's house, but to his own to cover up the crime. He was charged with their murders and two counts of arson.

Producer Brenda Breslauer, who has been covering the case for Dateline, is here to tell us what prosecutors believe is Paul's motive and why science is now taking center stage in the courtroom. Hey, Brenda. Hi, Andrea. So, first of all, very interesting that this involves two brothers. What do we know about them, the Caneros, and their relationship?

Producer Brenda Breslauer, who has been covering the case for Dateline, is here to tell us what prosecutors believe is Paul's motive and why science is now taking center stage in the courtroom. Hey, Brenda. Hi, Andrea. So, first of all, very interesting that this involves two brothers. What do we know about them, the Caneros, and their relationship?

Producer Brenda Breslauer, who has been covering the case for Dateline, is here to tell us what prosecutors believe is Paul's motive and why science is now taking center stage in the courtroom. Hey, Brenda. Hi, Andrea. So, first of all, very interesting that this involves two brothers. What do we know about them, the Caneros, and their relationship?

Yeah, I've been to Colts Neck. It's an absolutely beautiful area of New Jersey.

Yeah, I've been to Colts Neck. It's an absolutely beautiful area of New Jersey.

Yeah, I've been to Colts Neck. It's an absolutely beautiful area of New Jersey.

It was Keith. And what makes this story so incredibly tragic is that it wasn't just Keith. It was the rest of his family as well, right?

It was Keith. And what makes this story so incredibly tragic is that it wasn't just Keith. It was the rest of his family as well, right?

It was Keith. And what makes this story so incredibly tragic is that it wasn't just Keith. It was the rest of his family as well, right?

Wow. So what exactly happened here between these two brothers? Do we have a motive?

Wow. So what exactly happened here between these two brothers? Do we have a motive?

Wow. So what exactly happened here between these two brothers? Do we have a motive?

How has he responded to all of this? Has he said anything? He has pleaded not guilty, and he maintains his innocence. The murders happened back in 2018. Six years later, the case is in court, but still not in trial.

How has he responded to all of this? Has he said anything? He has pleaded not guilty, and he maintains his innocence. The murders happened back in 2018. Six years later, the case is in court, but still not in trial.

How has he responded to all of this? Has he said anything? He has pleaded not guilty, and he maintains his innocence. The murders happened back in 2018. Six years later, the case is in court, but still not in trial.

Is the assumption by the prosecution that Paul thought that his jeans and the glove would burn in the fire? I mean, why would you leave these items in your own basement? Yeah.

Is the assumption by the prosecution that Paul thought that his jeans and the glove would burn in the fire? I mean, why would you leave these items in your own basement? Yeah.

Is the assumption by the prosecution that Paul thought that his jeans and the glove would burn in the fire? I mean, why would you leave these items in your own basement? Yeah.

Okay. Thank you, Brenda, for your insight into this disturbing case. You're welcome. Up next, it's Dateline Roundup. The Florida woman convicted of leaving her boyfriend to die in a suitcase learns her fate. And prosecutors say the Colorado dentist accused of poisoning his wife has a new target. Plus, Dennis Murphy remembers the Amanda Knox case. Welcome back.