COIMBATORE: A 27-year-old youth from Erode arrested and lodged in Coimbatore Central Prison for his alleged links to ISIS has been booked by Coimbatore City Police on Thursday for issuing death threats to prison staff. Aasif Muzafudin is behind the bars, on various offences. On Wednesday. “While going to meet his father, Aasif had stamped on the feet of a jail warder Dhanvendran. When the staff questioned the prisoner Aasif broke into an argument. He abused Dhanvendran and another jail warder Rahul, who were on duty,” police said.