The date is September 1483. Richard's two nephews, Edward and Richard have gone missing. He's been hauled into the police station.
The Facts
Most people think they know what happened but the truth is, we just don't know. However, what is obvious is that Richard would have been called in to talk to police if this happened now. There is no evidence that he ordered someone to do it and that is all the law is concerned about. All the dates and activities in the podcast are factual evidence.
The text that Karen reads is a verbatim quote from the last person to see the boys alive. He did reform various aspects of the law when he became King, all of which were positive.