I just sold my house and after the contigency was removed the buyer suddendly died?

I am lost for words, i just sold my house and the buyer suddenly died 3 days after the contingency was removed. I am unsure whats happening at this moment. My real estate agent is looking into this at the moment. Has this ever happened to anyone before. I imagine i still own the home being the buyers loan was not funded yet but do i ? any help or advice on this is greatly appreciated.