Scott Peterson says he had a ‘terrible physical reaction’ to Laci’s death, while detective says the convict killer had ‘little reaction’

Scott Peterson continues to claim his innocence in the 2002 murder of his wife, Laci Peterson, and their unborn son, Conner. His version of events, however, sharply contrast with what a detective who worked the case remembers, as seen in the latest episode of the A&E docuseries The Murder of Laci Peterson.

In an exclusive clip airing on tonight’s episode, Peterson, as well as retired Modesto detective Jon Buehler, recall their reactions when hearing the news that Laci’s remains had been found. According to Buehler, who worked the case at the time, Peterson reacted as the detective thought he would: with little to no emotion.

“We told Scott. [There was] very little reaction on Scott’s part. In my view, because he was the one who killed Laci, there’s no reason for him to have a lot of emotion because he knew what the results were gonna be.”

Peterson, on the other hand, recalled that he had a “terrible physical reaction” when he learned that his pregnant was found deceased.

“When they told me, I had just a terrible physical reaction. I mean it was a really emotional, physical reaction,” Peterson told his sister-in-law, Janey Peterson, in recorded audio call made earlier this year from death row.

Buehler said Peterson’s claim is absolutely false. In 2005, he told PEOPLE similar sentiments from his most recent statement on Peterson’s reaction.

“He was not angry. He didn’t ask a whole bunch of questions. he only thing he said was, ‘Is that my wife and son?’ At that point it was sort of like, ‘Come on, Scott.’ So I said, ‘You know the answer to that question.’ Then he did fake sniffles.”

Peterson explained to Janey that the reason authorities didn’t see how he truly felt is because he forced himself not to react in front of them.

“But I was in the car with those two detectives and I just stopped that. I wasn’t gonna let them see the emotions I was going through.”

Peterson was convicted in 2004 for killing Laci and Conner. He’s currently on death row at San Quentin State Prison in Marin County, California. He appealed the conviction, and according to court documents, the appeal is still pending. Although the case rested largely on circumstantial evidence, there was enough presented during trial to convince a jury that Peterson murdered Laci and dumped her pregnant body into the San Francisco Bay.

Catch The Murder of Laci Peterson on Tuesday (10 p.m. ET) on A&E.

ADDITIONAL Scott Peterson Coverage:

‘I couldn’t feel my feet on the floor’: Scott Peterson says he’s shocked he was convicted of killing Laci Peterson and unborn son, Conner

The real reason Scott Peterson killed his wife: Aphrodite Jones talks Peterson’s true motive and CrimeCon [EXCLUSIVE]

CrimeOnline Evidence Locker: Watch the Scott Peterson interrogation tapes

Scott Peterson’s last message to Laci revealed to the public for the first time

[Feature Photo: Handout]