"The Police Reporter" pre-dates the more famous network show by a couple of years - if not the first, it could be one of the earliest true crime shows on the air. Program 1 of the series is about a man who has been missing for four days. A neighbor calls the police, thinking something may be wrong. It's the Lincoln murder case, which occurred in Aurora, Illinois in 1923.
The program includes an announcement that this is the first program of the series. The series uses real names, dates and locations, so it's easy to track down information on the real cases dramatized on many of the programs. There was a detailed May 13, 2007 newspaper article from the Aurora Beacon News about the murder. There are 26 shows in the distribution and they are digitized directly from a set of original transcription discs.