Home / Disasters and Accidents / Silent Killer Strikes: Boy Dies Hours After CO Alarm Ignored
Silent Killer Strikes: Boy Dies Hours After CO Alarm Ignored
8 Feb
Summary
- A boy died from carbon monoxide poisoning hours after a detector alerted a neighbor.
- Building owner claims boilers were commissioned day before the fatal incident.
- Tenants question why CO alarms in the building failed to activate.
An 11-year-old boy, Henry Losco, died from carbon monoxide poisoning in a Regina apartment building on December 19, 2025. This occurred mere hours after a neighbor's carbon monoxide detector activated. The neighbor reported opening a window and using a fan after being told by maintenance to do so, regretting not pushing for further action.
Tenants are demanding accountability, as many CO detectors in the building reportedly failed to sound during the incident. Emails show a tenant repeatedly questioned the building management about the alarms and requested detectors in every apartment. Management eventually responded, stating detectors were in 'needy places'.
The building's owner, Mark Frentz, indicated that two new boilers were commissioned on December 18, 2025, the day before the death. The Technical Safety Authority of Saskatchewan (TSASK) confirmed they inspected the boilers on December 18 and found them to be operating correctly. However, the Regina fire chief later stated the leak stemmed from a 'critical failure in a boiler'.
Frentz suggested that an internal explosion in one of the boilers occurred the day after commissioning, damaging the venting stack and releasing carbon monoxide into the building. The family is speaking out, heartbroken by their loss and hoping to prevent similar tragedies.
