[jessriedel]

None of your points fully address what's needed to justify lethal force.

The Police Executive Research Forum emphasizes that the police are not authorized to start executing someone who was engaged in active, suicidal shooting once that person is contained:

> Many [police department] policies note that Active Shooter protocols should not be used as a response to “barricaded gunman” situations. And some policies note that active shooter incidents are dynamic, and that an incident may go in and out of active shooter status in ways that could alter the police response. For example, a situation may begin as an active shooter incident, but if the shooter barricades himself in a room where he no longer has access to potential victims, and the police can secure that room and contain the shooter, the police response should shift accordingly.

http://www.policeforum.org/assets/docs/Critical_Issues_Serie...

The police had him trapped for two hours before they blew him up. Perhaps there really was a new development that forced them to take action, but it's not a call we can make merely knowing how bad the guys was. It depend on the details of the situation.