Hopefully the family has sense to file civil suit against these guys to prevent their profiting...
If you read the story, it seems pretty likely that they are, in fact, innocent.
The crime scene was consistent with a single perpetrator - and another completely unrelated man who also confessed had his DNA found at the scene.
I must admit, my first reaction was to condemn Kaine - but, after an extensive reading, it sounds like he’s done a reasonable and, I dare say, even brave thing here.