Do you think his death was preventable by us?

I learned this week the guy renting our investment property died from a suicide over night, he was a very educated and smart guy but decided he could not afford a house so rented our apartment for over ten years with the hope of one day saving up enough money for a house and months ago, the door in his apartment broke and building management took around two months to fix the issue because they did not care about him or respect him and less than 3 months later he commits suicide, what do you think? Was it our building managers fault? Was it our fault? Was it his fault that he did not disclose his needs to others?
Do you think his death was preventable by us?
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