Registration of Death / Long form Death Certificate
From Govt on Ontario - Vital Statistics Registry office.
Request Medical Certificate of death -that will show cause of death. [info may be limited to certain family connections]
If this was a suspicious death/ murder/ suicide etc
There may be a Coroners Report -
May be a news story -
OBITUARY - may have been published.
You know the name of the Cemetery where your Grandfather Eugenio ADAMO is buried.
They should be able to tell you the name of the Funeral Home in Charge of Arrangements - Perhaps the Funeral home can advise if an Obit.had been published - plus other info - though there may be concern re privacy or the deceased and family.