That is how whacky and farcical Western society in Europe has become.
Not only did the police now in fact who the man was through fingerprints and DNA (from his handgun) the identity of the man was widely known in Denmark at the time of Hedegaard’s posting of his name.
NOTE: Here’s an excellent quote brought to my attention by Andy Bostom:
“Loved her question to Lars: “Is he {would be assassin] allowed to mention your name?”