The CSST has determined the company that built a retaining wall which collapsed last year is responsible for the death of a man in his fifties.

Sylvain Mailly was working at 6568 Marquette St. with his boss the day after the retaining wall was built. He was working at the bottom of the job site when the wall, built the day before, suddenly collapsed.

Mailly was crushed underneath dozens of cinder blocks and died at the scene.

The CSST said Michel Jalbert Masonry had built the nine-metre-high retaining wall on Oct. 30, 2013, but failed to put anything in place to ensure the wall would stay in place.

As a result the following day, under moderate winds, the wall blew down.

The CSST has fined Michel Jalbert Masonry for the death, and ordered the company not to build similar structures in the future until it gets proper instructions from an engineer.

The CSST fines companies $15,698 to $62,790 for a first offense.