Sadly, descriptives for the word "murder" are necessary as the left deems murder by BLM and Antifa sensible and justified. It's all about the purpose of the murder. Had the wife witnessed a "sensible murder" the expected response, assuming she's a good SJW, would be glee:
Gleeful Wife Witnessed Huband's Sensible Extermination By Virtuous Protesters Of Oppressive Statue
Or NY Post hires unqualified quota fillers to write headlines.
Occam's razor says the former explanation is more likely.