Guilty Verdict, Modest Fine: Swiss Court Convicts Guide in Avalanche Deaths of Two Boarding-School Teens

More than three years after an avalanche swept two 18-year-old students to their deaths on a Swiss mountainside, a regional court has found the guide who led their ski tour criminally responsible — closing, at least for now, a rare criminal case that has forced Switzerland's tightly regulated mountain-guiding profession to confront a question it rarely faces in a courtroom: who bears legal blame when a guided trip in the mountains goes fatally wrong.

The Oberland Regional Court in Thun ruled Friday, August 14, that mountain guide Lukas Iten was guilty of multiple counts of negligent homicide in connection with the deaths of Emily Franciose, an 18-year-old from Vail, Colorado, and Archie Harvey, an 18-year-old from West London. The court sentenced Iten to a conditional fine of 150 daily rates of CHF 90 (about $110 each), totaling roughly CHF 13,500 (about $17,400), with a two-year probationary period — meaning no additional penalty will apply if he avoids further offenses during that time. Guido Bieri, a longtime employee of the École d'Humanité boarding school who co-led the tour as the school's outdoor-program coordinator, was acquitted. The verdict is not final; both sides have ten days to appeal.

What Happened on the Wellhorn

The case centers on an avalanche that struck on March 21, 2023, near Gstelliwang, on the north face of the Wellhorn in the Bernese Oberland, above the town of Meiringen. Franciose and Harvey were among a 12-person ski touring group made up of students and staff from the École d'Humanité, an international boarding school in nearby Hasliberg where both teenagers were enrolled.

The group set out that morning under the guidance of Iten, a veteran local mountain guide, and Bieri, who ran the school's outdoor program. They began their ascent from Broch around 10:30 a.m. and climbed to roughly 8,200 feet before beginning their descent. According to an independent investigation by the Swiss Institute for Snow and Avalanche Research (SLF), the group's first run down was uneventful: Iten chose a comparatively gentle line on the eastern side of Gstelliwang, with a slope angle below about 35 degrees, skied it first himself, and instructed the group to maintain spacing as they followed. Everyone reached the gathering point safely.

It was the second descent, through steeper, more exposed terrain on the slope's northern side, that proved fatal. Shortly after 4:15 p.m., an avalanche released and swept Franciose and Harvey over a rock face several hundred meters high. Harvey was located about an hour and 35 minutes later, buried under roughly two meters of snow, and was already dead; both teenagers ultimately died of asphyxiation. Franciose's body was not recovered that day, or that week — she remained missing for nearly three months until her remains were found in the Rychenbach stream on June 18, 2023.

At the time of the accident, the regional avalanche danger rating stood at level 2 ("moderate") on Switzerland's five-point scale, but the SLF had specifically flagged a persistent weak layer buried in the old snowpack. In its later assessment for the court, the SLF found little to fault in the group's ascent or first descent, but concluded the decision to take the steeper, exposed northern line on the second descent warranted additional safety precautions that were not taken.

The Trial

Iten and Bieri went on trial on August 12, three and a half years after the accident, both facing charges of negligent homicide and both denying they had violated their duty of care. Prosecutors argued that the second descent amounted to a dangerous misjudgment given the terrain and known snowpack conditions, and sought manslaughter convictions and suspended fines against both men. Defense lawyers countered that Iten had seen no meaningful difference between the first and second lines and had observed no warning signs at the site, and argued more broadly that guided mountain travel can never be reduced to zero risk.

In the end, the court split the two defendants' culpability, convicting Iten as the guide who chose and led the fatal line while acquitting Bieri, who was present as the school's co-leader but did not direct the route.

A Rarely Tested Legal Question

Criminal prosecutions of mountain guides over client deaths remain unusual even in a country as steeped in alpine tourism as Switzerland, and the case has drawn attention well beyond the Bernese Oberland for what it suggests about how courts are beginning to weigh professional responsibility against the inherent unpredictability of avalanche terrain. A comparable case has surfaced recently in Austria, where a court convicted a climber of grossly negligent homicide after ruling that his experience effectively made him the guide of a fatal ascent — even though the outing had been framed as a recreational trip between partners rather than a formal guided tour, a decision now under appeal. Alpine fatalities are not rare in Austria, where prosecutors say roughly 285 mountain deaths are recorded annually, yet criminal cases of this kind remain highly unusual there as well. Attorneys handling ski-accident litigation in California, Colorado and Utah have said they had not previously encountered a fatal avalanche on a guided trip triggering a criminal investigation before a deadly slide during a commercial backcountry tour in California earlier this year.

The Families

For Emily Franciose's family, the years since the accident have been marked by an unusually prolonged search — her body was missing for nearly three months — and by her parents' own direct ties to mountain safety. Her father, Reg Franciose, a trauma surgeon, has long served as medical director of the Vail Ski Patrol; her mother, Sue Franciose, has spoken publicly on past anniversaries of the accident. Since Emily's death, the family has continued raising funds for charitable projects she had started before she died. "She had such a positive impact on the lives of many people," Susan Franciose has said of her daughter. Archie Harvey's family did not provide a statement on the verdict.

The École d'Humanité, founded in 1934 and known for building its curriculum around outdoor pursuits including regular hiking and skiing in the surrounding Alps, said at the time of the accident that it was "deeply saddened" by the tragedy.

Whatever the outcome of any appeal, the verdict is unlikely to bring the case to a full close for those closest to it. As one report on the trial put it, the legal proceedings cannot change what happened on the mountain more than three years ago — but they may, at last, offer the Franciose and Harvey families some measure of closure.