Video footage of a 74-year-old man being shot dead by an Ohio gunman has prompted Facebook to review how it handles video content.
Steve Stephens shot Robert Godwin dead in Cleveland as the latter walked home from an Easter lunch and posted the footage to the social network - which has roughly 1.9 billion users - on Sunday.
The video was available for viewing online and on mobile apps for two hours before administrators removed it at the behest of user complaints.
In a statement, the company said it would seek to improve the speed at which violent videos can be removed from the site once they have been reported and reviewed.
A manhunt across the US is under way for Stephens, who claims to have killed 13 additional people.