KOLKATA::A 22-year-old youth was shot dead by his friend in Halisahar on Saturday morning. Police arrested the accused Subhadeep Das, 24, for killing Rahul Thakur who had allegedly made vulgar comments about Das’ mother. Police have seized the firearm from Das.According to sources, friends Das and Thakur got into an argument at a tea stall in Balibhara. Both were using slang and others had to intervene to stop the argument.Later in the evening, the duo argued again. “During the heated argument, Thakur made an obscene comment about Das’ elderly mother. Das then whipped out a gun and fired at Thakur twice before fleeing the spot,” a local trader said.Thakur was taken to Kalyani JNM hospital where he died. His family demanded an exemplary punishment for Das.“We are investigating how the accused got the firearm. He will be produced in a Barrackpore court on Sunday,” said K Kannan, DCP, Zone 1, Barrackpore Commissionerate.