You are assuming that the renter knew the landlord's son was using that address. Since makinmg assumptions is the best you've ever done we shouldn't be too hard on you.
I occasionally get junk mail addressed to people who haven’t lived in my house in 20 years. I should probably inform the police, just in case they’re drug dealers.
I am not making much of an assumption when the news item (which I assume you read) states:
"Tossas landlords son, who apparently uses Tossas one-story houses address for mailing."
I further assume that you understand what mail is and how it works.
But since you need to include a personal slight in your response to me - let me inform you I really don't care much considering you are a long term (a life time really) drug abuser who brags about "40 years of pot smoking experience".
If you think you are going to continue a personal vendetta against me on this forum without me throwing in your face what a disgrace you are, then you are as crazy as people can safely assume you to be for your admitted long term drug usage.
The next time you light up remember it, and stuff that in your pipe and smoke it.