CALGARY, ALTA. – Liam Johnston, a 27-year-old worker for Mr. Mike’s Plumbing, was killed on June 8 when a trench he was working in collapsed in the City of Calgary. In a statement to the Journal of Commerce, Calgary Police Services said the incident is under investigation and its Victim Assistance Support Team has been … Continue reading Investigation underway after a 27-year-old was killed in a Calgary trench collapse