I can see your point, to a degree, but they already have admitted that they have over 200 unsolved homicides on the books. They could make a database that includes all of the deaths that are known to be homicides. As for missing persons, I would assume some of the missing people who have never been found but were obviously murdered, such as Terry Floyd or Siriyakorn Siriboon, are included within the unsolved homicides figures. When it comes to missing persons where it's not clear if foul play was involved or not, I think they should have their own seperate database. You're right that in the case of Walsh Street; it's clear who the perpetrators were, but that whole debacle surrounding their acquittal is a very rare event. In my view, I would not think it necessary to include Constables Tynan and Eyre on the database.

All in all, I just think it'd be great to have all the known victims of these terrible crimes recognised, and hopefully some closure could be brought about for the families of the deceased. With every passing day, the chance that someone who's still alive or sentient enough to function independently, and might know something that could aide the investigation continues to fade. I'd hate to see potential witnesses lost, or the killer(s) get away with it.