Unless they have been in communication months or years prior.I understand the copycat phenomenon, and agree that it is unwise to give such notoriety to killers.
My point here was that the timeline between the commission of the Uvalde incident (and, therefore, the identification of the rifles used in that incident) and the Greenwood Park Mall shooter's purchase of the rifles used in that incident doesn't work. The latter purchased the firearms before the former committed his act (and thus, before the identification of the firearms he used).