There are ways you could do this OP, but I dont think this:
to think if there was a dead body buried in the garden you would want to know about it?
emotive, dramatic, and lacking facts, drip-feeding title is the way.
If you say that youve come across roman artifacta buried in their garden through archeological research, they will be of a totally different mind.
No, you wouldn't need to say 'did you know theres a corpse in your garden?'
Would you actually consider saying such a dramatic thing?
As an archaeologist it must be absolutely fascinating and frustrating to the enth not being able to investigate it.
There's a world of difference between having a 'corpse/dead body' of unknown age and degree of decomposition on your own grounds, and being on the edge of a Roman site with random archeological artefacts and remnants of bones scattered across properties newly built.
I'd want to know...without any drama!