Wero is being introduced for E-Commerce soon. So that may be an option.

The lady with the stalker actually kills him a couple of years later and lives the rest of her life peacefuly and secluded off of his fortune. (According to the wiki)

All Dishonored games feel amazing when you manage to get in and out completely unseen and unheard. And there’s always a none lethal option to get rid of your target. Although I’d argue most of the times the non-lethal option is the more cruel one…