Wildfires are usually blamed on drought, lightning, or human carelessness. But a string of recent, high-profile blazes in North America and Europe has investigators pointing to something more deliberate. From California’s scorched hillsides to the forests outside Paris, prosecutors and fire officials have been building arson cases against individuals accused of deliberately setting some of the most destructive fires in recent memory.
North America: Charges and Convictions
California has produced two of the most closely watched cases. The Park Fire, one of the largest wildfires in the state’s history, led to felony arson charges against Ronnie Dean Stout II; later reporting indicated he was ultimately convicted of starting the blaze.
The Palisades Fire, which became one of the deadliest and most destructive fires in Los Angeles history, has taken a more complicated legal path. Federal prosecutors accused Jonathan Rinderknecht of maliciously starting the fire’s original ignition point, and a later indictment added further arson-related felony counts. The case has not been straightforward, however — a federal trial reportedly ended in a mistrial.
Elsewhere in Northern California, the Thompson Fire destroyed homes and burned thousands of acres before investigators identified it as human-caused. Spencer Grant Anderson was later hit with multiple arson counts in connection with the blaze.
Canada has seen its own reckoning. During the historic 2023 wildfire season, Brian Paré pleaded guilty to 13 counts of arson after admitting to lighting more than a dozen fires, some of which forced evacuations. More recently, in Saskatchewan, two residents were charged with arson in 2025 for separate fires that broke out during an already active wildfire period.
Europe: Suspicion, Arrests, and a Continent on Edge
The pattern isn’t confined to North America — and France, in particular, has been at the center of it. In July 2026, a fire broke out in the Fontainebleau forest near Paris, in the former royal hunting preserve. Investigators grew suspicious after noticing several ignition points close together, and two people were arrested on suspicion of arson; police ultimately treated the blaze, which burned thousands of acres before being contained, as deliberately set. Visiting the scene, President Macron said the country had not faced this many fire outbreaks since the end of World War II and promised zero tolerance for arsonists.
Fontainebleau turned out to be one episode in a much larger, still-unfolding fire season. Earlier in July, several people were detained over suspected arson tied to fires in the Hérault region, part of a stretch that had already burned roughly 14,500 hectares by early July. By mid-July, national losses had climbed past 42,000 hectares — already outpacing the previous record pace set in 2022, the worst wildfire year in French history. The destruction continued into late July: a fast-moving wildfire broke out near Bordeaux on July 22 and forced more than 20,000 evacuations in the Gironde department, and two firefighters died battling a related blaze that spread from a brush fire near Bordeaux airport to a nearby building. Across the country, French authorities reported dozens of arrests for either accidentally or deliberately starting fires during the same heatwave stretch.
Spain endured an even larger surge the previous year. Over the course of the 2025 wildfire season, Spanish authorities investigated 110 suspected arson cases and made 22 arrests, with serious fires breaking out in Galicia, Oímbra, Puercas, Chandrexa, and Ávila.
England has also seen isolated but notable incidents. Fire officials flagged suspected arson at York’s Hob Moor Nature Reserve, while a separate, larger moorland fire near Dovestone in Greater Manchester led to an aggravated arson charge against a woman accused of starting it.
A Recognizable Pattern
Not every case here has resulted in a conviction, and the strength of the evidence varies widely. The clearest examples — Park Fire, Thompson Fire, and the Quebec fires — involve direct charges or guilty pleas. Others, particularly in France and Spain, are better described as suspected-arson clusters, where investigators see strong circumstantial evidence of deliberate ignition without every individual fire being proven in court.
Still, certain features recur across nearly all of these cases: multiple ignition points close together, fires breaking out at unusual times, witness accounts, and surveillance footage placing a suspect at the scene. Almost all of them also share one environmental thread — dry vegetation, high heat, and strong winds that turned a deliberately set spark into a fast-moving disaster.
Motive is harder to pin down, and the record so far points away from any shared ideology and toward more individual, even mundane, drivers. Federal prosecutors say Rinderknecht was personally distraught — upset over a failed relationship and a lonely New Year’s Eve — and had voiced resentment toward wealthy Angelenos before the Palisades Fire ignited. Several suspects, oddly, had a foot in fire response itself: Anderson had completed a firefighting course and earned a certificate the week before he threw a lit firework from his car, and one of the two Fontainebleau suspects turned out to be a 19-year-old volunteer firefighter who admitted using gasoline and a lighter, though investigators haven’t disclosed why. Paré told police he set his fires to test how dry the forest was, even as he separately posted online that the government was secretly starting fires to manufacture belief in climate change. Stout, for his part, was seen drinking heavily in the hours before the Park Fire ignited. For most of the recent European cases, authorities have yet to disclose a motive at all.
As wildfire seasons grow longer and more intense across both continents, investigators say that distinguishing accidental ignition from deliberate arson has become an increasingly urgent part of fire response — not just for prosecuting individual cases, but for understanding how much of the growing wildfire toll is preventable.
