“What if she got in the way of the police getting a clear shot?”
If the police were inside, doing their job (leading), then she needn’t go in. Otherwise, they should put their badges and guns on the ground and crawl away.
There is no “waiting for backup” when people are being sacrificed inside.
If I were a cop I’d just quit. There is obviously nobody on either side worth saving. You guys are sickening.