Prosecutors paint Palisades Fire suspect as a premeditated arsonist in opening statements

Prosecutors say the Jan. 1 fire burned undetected deep in root systems before flaring back up on Jan. 7. Assistant U.S. Attorney Matt O'Brien told jurors that security camera footage shows where and when the fire ignited atop a hill, and investigators were able to place Rinderknecht nearby because he called 911 for help 16 times in quick succession on the evening of Jan. 1.

O'Brien said that Rinderknecht was the only person there that evening. He said that after firefighters arrived, Rinderknecht followed them up the hill to take videos of them putting out the blaze. Investigators later seized a barbecue lighter from his car that he admitted to having with him on the trail.

Defense attorney Steve Haney said Rinderknecht was on the hilltop near the fire's ignition that night, but only to watch the fireworks after dropping off Uber passengers nearby. Haney said multiple witnesses as well as first responders will testify that they heard fireworks in the area around the time the fire ignited.

“When all the evidence is in, there will be one thing missing: proof that Jonathan Rinderknecht started that fire on Jan. 1,” Haney told jurors.

The Palisades Fire ultimately killed 12 people and destroyed thousands of homes as it incinerated hillside neighborhoods in Pacific Palisades and the city of Malibu. Rinderknecht faces at least five years in prison if convicted of charges that also include malicious destruction by means of a fire.

O'Brien, in his opening, painted a picture for the jury of a troubled young man who was lonely and angry at the world after a recent breakup.

“He wanted revenge — revenge against society because he blamed society for all his troubles,” he said.

O'Brien also showed jurors a prompt that Rinderknecht had entered into ChatGPT six months earlier. “So on the far left, we're going to have a burning forest and then you have a bunch of people running away from that,” the prompt began.

Haney reminded jurors it didn't matter if they liked his client or “approve of the way Jonathan uses his computer.” He said Rinderknecht’s behavior after the fire, from calling 911 to cooperating with investigators, demonstrated his innocence.

Haney played an audio recording of Rinderknecht’s conversation with a 911 operator during which he reported a fire in the Pacific Palisades.

When federal investigators knocked on Rinderknecht's door, he didn’t hide or refuse to answer, Haney said. Rinderknecht even agreed to drive back to the Palisades to help investigators pinpoint the start of the fire.

“It’s the voice and actions of a man who was trying to stop the fire,” Haney said.

Leading up to the trial, Haney has argued that Rinderknecht is being made as a scapegoat for the Los Angeles Fire Department’s failure to fully extinguish the Jan. 1 blaze.

Judge Anne Hwang has ruled that the defense can’t introduce evidence or arguments about alleged negligence by the Fire Department, saying it was irrelevant and could confuse the jury. Defense attorneys had planned to include testimony from a firefighter that the fire was visibly smoldering when first responders left before it reignited days later.

Prosecutors began presenting their case by calling witnesses with California State Parks and the Santa Monica Mountains National Recreation Area to establish that the fire affected areas with federal jurisdiction.

They also called Special Agent Michael Montevidoni with the Bureau of Alcohol, Tobacco and Firearms, one of the lead investigators in the case.

Montevidoni spent hours on the stand explaining to jurors how investigators gathered evidence and interviewed more than 100 of Rinderknecht's friends, family and acquaintances.

Prosecutors also introduced a multitude of digital records into evidence obtained from his phone, email, Uber, OpenAI and various social media accounts.

Montevidoni said he reviewed thousands of conversations between Rinderknecht and ChatGPT, during which Rinderknecht lamented wealth disparity and climate change in the world and his inability to do anything about it.

These conversations led up to early hours of Dec. 31, 2024, during which Rinderknecht sent angry messages to a woman that he had a prior romantic relationship with. At the same time, he vented to ChatGPT, Montevidoni said.

“It was consistently showing anger and frustration,” Montevidoni said.