Rudrapur, Nov. 11 -- Police arrested a 25-year-old man on Tuesday for killing his 20-year-old friend and dumping his body inside a drain in Khatima, Udham Singh Nagar, allegedly over an argument about a drug injection, officers said. According to a police release, the accused, Sanjay Gupta, and the victim, Abhay, both drug addicts met at Shiv Colony Chauraha on Saturday and subsequently went to an open ground near the colony. They were consuming smack and preparing a drug injection when one injection dropped on the ground. A scuffle broke out between them over claiming the remaining injection. As the dispute escalated, Sanjay strangled Abhay using the drawstring of his lower garment, stole Rs.2,300 and his mobile phone, and hid the body in a drain 15-20 metres away. The next day, fearing being caught, Gupta handed over Abhay's mobile phone to his family and spent Rs.1,700 of the stolen money on Deepavali shopping. Police subsequently recovered the body from the spot, which the victim's brother later identified. "We detained the suspect for questioning following a missing person report. During interrogation, he confessed to strangling his friend," said Kamal Lunthi, in-charge, Khatima police station....