Josh Mankiewicz

Poisoning. Hearn testified he and Sabrina had first planned to kill Rob with arsenic-laced banana pudding in April 2014. Jonathan said that attempt was called off when Sabrina began to fear their affair might be revealed.

Poisoning. Hearn testified he and Sabrina had first planned to kill Rob with arsenic-laced banana pudding in April 2014. Jonathan said that attempt was called off when Sabrina began to fear their affair might be revealed.

So he said they decided together it was better to wait and put some time between Rob's murder and all that activity on their phones. Hearn said he bought Sabrina a burner phone and kept it loaded with prepaid minutes. It was while waiting for his next opportunity that Hearn said he had second thoughts about the idea of poisoning Rob.

So he said they decided together it was better to wait and put some time between Rob's murder and all that activity on their phones. Hearn said he bought Sabrina a burner phone and kept it loaded with prepaid minutes. It was while waiting for his next opportunity that Hearn said he had second thoughts about the idea of poisoning Rob.

Few things are more direct than a .45 caliber slug at point-blank range. That became Jonathan Hearn's plan. He says he spent the next few months prepping for murder. He cased the railroad shop where Rob worked in Tehachapi. He took photos and noted where the security cameras were located. He bought clothes and a mask to disguise himself, and adhesive flashing to disguise his motorcycle.

Few things are more direct than a .45 caliber slug at point-blank range. That became Jonathan Hearn's plan. He says he spent the next few months prepping for murder. He cased the railroad shop where Rob worked in Tehachapi. He took photos and noted where the security cameras were located. He bought clothes and a mask to disguise himself, and adhesive flashing to disguise his motorcycle.

When Sabrina told him her husband would be working in Tehachapi on that Sunday in August 2014, Jonathan says he told her he was ready.

When Sabrina told him her husband would be working in Tehachapi on that Sunday in August 2014, Jonathan says he told her he was ready.

On the day of the murder, Hearn said, he arrived in Tehachapi around mid-afternoon. After parking his motorcycle in a secluded spot, Hearn said he donned an old man mask and set out on foot, walking with a limp. He was looking for the unmarked shop where Rob Lamone worked.

On the day of the murder, Hearn said, he arrived in Tehachapi around mid-afternoon. After parking his motorcycle in a secluded spot, Hearn said he donned an old man mask and set out on foot, walking with a limp. He was looking for the unmarked shop where Rob Lamone worked.

Unable to determine exactly which building Rob Lamone worked in, Jonathan said he was about to call it off and go home. Then he said he saw Rob Lamone pull up to one of those buildings in his service truck and open the garage door.

Unable to determine exactly which building Rob Lamone worked in, Jonathan said he was about to call it off and go home. Then he said he saw Rob Lamone pull up to one of those buildings in his service truck and open the garage door.

Hearn said his mind was filled with conflicting thoughts at that moment. One of those thoughts, he said, was, Thou shalt not kill. And another, God's purpose. All that stuff he and Sabrina had been saying about God wanting them to be together.

Hearn said his mind was filled with conflicting thoughts at that moment. One of those thoughts, he said, was, Thou shalt not kill. And another, God's purpose. All that stuff he and Sabrina had been saying about God wanting them to be together.

And so, just before he stepped into that shop to murder his romantic rival, Jonathan Hearn said he paused to pray.

And so, just before he stepped into that shop to murder his romantic rival, Jonathan Hearn said he paused to pray.

Rob Lamone was sitting in the office when Jonathan Hearn entered through the open garage door. Hearn told the court that when Rob Lamone saw him, he came out of the office to meet him.

Rob Lamone was sitting in the office when Jonathan Hearn entered through the open garage door. Hearn told the court that when Rob Lamone saw him, he came out of the office to meet him.

What must Rob Lamone have been thinking in that moment? A stranger standing in his railroad shop on a Sunday afternoon, wearing an old man mask. And that voice... Did it sound familiar? Did Rob know who he was talking to? We will never know. Just as we may never know what those two men said to each other in those final seconds.

What must Rob Lamone have been thinking in that moment? A stranger standing in his railroad shop on a Sunday afternoon, wearing an old man mask. And that voice... Did it sound familiar? Did Rob know who he was talking to? We will never know. Just as we may never know what those two men said to each other in those final seconds.