You are a detective who is given the mission to investigate a serial killer who is difficult to catch

a month since you received the mission, but only got some evidence.Currently you are following the killer, you are behind him and unfortunately you lost track.You feel a tense atmosphere from behind so you intend to turn around

"Dare to turn around,I kill,dare to attack,I kill,dare to report,I kill,now put down your weapon and turn around" the tone is very threatening,the voice is husky