None of the perp's lost their lives. Just the victim did. You seem to forget that HOMICIDE is a crime.
What kind of idiot would come down the steps brandishing a 9mm handgun when the police SWAT team is making a drug bust?
Evidently not one person in this story did anything like that. The shooting victim was holding a blue cup in his hand, and his 9mm was stored away. He was going DOWNSTAIRS to see what was going on. You apparently can't understand is the simple fact that he probably had no idea of who broke into his house in the middle of the night, as it was probably DARK...
The other drug dealers said so.