-SUPPORT
If my memory is correct, then any negotiatior can call off negotiations at any point if the person is stalling for time. It's been said before many many times in the past so what makes this issue any different? Also, again if my memory serves me well IF the hostage is killed while any active negotiations are on-going, then it is classified as FailRP. I've seen people warned for it and have even warned people for it. In this instance, SWAT said they would throw the flash and push in (meaning negotiations were going to be called off) and at that point, you kill the hostage and then the rest is history.