This was a difficult case for local media. For all intents and purposes, the media would not have likely learned about this that day unless the Sheriff issued a press release (which they did) unless they were listening to the police scanners in a dedicated manner that day. Those that were, however, did alert local media and the grapevine in Northern Platte County started to hum with information including the victim's name.
Most reputable news outlets knew from experience that the case was a likely homicide given the Sheriff's language in the press release. Respect for the uninformed victim's family and waiting for a coroner's cause of death is typically paramount, a far more important and noble set of agreed upon rules. In this case, the Sheriff gave out as much information as he probably thought was useful to aid in his investigation.