They have already killed one hostage.
4 seconds sound clip from the Die Hard (1988) movie soundboard.
You can hear this line at 00:44:38 in the Blu-ray version of the movie.
Quote context
[...]
- It's the same address as that fire signal.
- Attention, whoever you are. This channel's reserved for emergency calls only.
- No fuckin' shit, lady. Do I sound like I'm orderin' a pizza?
- They have already killed one hostage.
- They are fortifying their positions while you're jerkin' me off on the radio!
- Now, send a police backup A.S.A.P.!
- Sir, I've already told you, this is a reserved channel.
- Fine, report me! Come the fuck down here and arrest me! Just send the police now!
[...]