In media relations, especially during a crisis, I always tell clients to get their story out first–don’t let others shape your story. (Note: this blog post takes a look at the PR aspect of the Cecil the Lion story, not the morality of it.)
Walter Palmer, who killed Cecil, issued a statement through a PR firm, but it was way too late. By that point, the media and people on social media already painted him in a extremely negative light (see the Yelp page for his dental practice, though you should note Yelp has already deleted about 5,000 posts).
In several subsequent articles, people familiar with big game hunting said that it’s actually common for a local guide to do all the work (scouting, luring the animal, etc.) before the client does the killing. Thus, it’s plausible that Palmer didn’t know he had killed Cecil the Lion, nor did he realize that it was lured illegally out of its protected zone.
Had he said that immediately, as well as explaining the method of killing (arrow followed by bullet) and garnering more experts to corroborate his story, he could have softened the blow. But, that’s all a moot point now.