There’s room in my heart 

It has never been filled 

I’ve thought were I smart

It would slowly be healed

Still lingers the void 

For the one never met 

Must forever I mourn 

Will I someday forget

This was actually written several years ago about a miscarriage in my family that happened when I was a child. The prompt reminded me of it. Technically it’s not talking about death of a person, more like the death of an idea.