Prayagraj: A 40-year-old salesman was found killed under mysterious circumstances at a liquor shop in Durgai village under the jurisdiction of the Bindki police station of Fatehpur district early Friday. Upon being alerted, senior cops along with forces and forensic experts rushed to the spot and carried out investigations.The deceased, identified as Satendra Singh, was a resident of Fatehpur. Initial police investigations revealed that the unknown assailants had also taken the keys of the liquor shop and had stolen the cash from the cash box.Senior police officials also conducted a thorough inspection at the spot and came to know that the deceased had been sleeping near the shop. Two police teams were assigned to crack the case.