LOS ANGELES—Explosives and arson experts from the U.S. Bureau of Alcohol, Tobacco, and Firearms this week told a jury in the federal arson case against Jonathan Rinderknecht that fireworks could not have been the culprit.
The 29-year-old Rinderknecht is accused of starting a blaze in the Santa Monica Mountains, which investigators say led to the deadly Palisades Fire of 2025.





