Deceased property owner

[Rebecca Hays]

Hello! Just starting out and have a question about a property-

The owner has been dead for 4 years. Looked into it, he had no wife or children. It looks like it was an investment property for him then he got sick and died. I looked on the tax assessor's website and it still says in his name. I don't see where there is a tax lien. What happens to these types of properties???

Thanks!