What is "demolisher"

Usage examples of "demolisher".

Yea, thou art still for me the demolisher of all graves: Hail to thee, my Will!

But when he finally came to the city-within-a-city he found it untouched by looters or demolishers, either because they knew there was little of worth to them here or— more likely—because the lingering superstition about a people who'd once occupied the Unbeheld's Dominion kept them from doing their worst.