"He killed himself, you baboon"

[Lee-Lee]

66. The SWAT team was there before 75 minutes

It was 75 minutes before they used explosives to breach the door and enter the room. They were in the hallway well before that.

It's a very high risk maneuver to go trough the only door into a place where someone who is armed and willing to shoot you is on the other side. Typically SWAT uses multiple measures to try and determine how many people are in, where they are, etc before they go in. It's high risk to be even in the hallway outside. Unlike the movies walls don't always stop bullets, so depending on how the building was constructed even standing near the door was very risky if he decided to shoot through the wall.

Since he had ceased active shooting at people outside the need to rush in as fast changed and allowed them to use a more cautious approuch. Had he actually started shooting out the window again that would have changed the assessment yet made on what risk they were willing to take and they would have gone in faster with less caution.