Seems to be a little more updated story. Quote( Autopsies revealed they died from gas asphyxiation, but it’s unclear what type of gas killed them, the prosecutor’s office said.)
Re: Family found dead in Tulum - 03/30/201802:44 PM
I just returned from Akumal where I have a condo and there was a lot of discussion about this. One theory is that the cause may have been water heater installed in a closet at that particular resort.
Our condo complex has all the water heaters on the roof.-- As a precaution because of gas stoves, we're all having CO2 detectors installed.