Knifeman on loose as pensioner stabbed to death in park prompting manhunt (Image: Google) A search is underway for a knifeman who stabbed a pensioner to death in Sheffield. The man, who was in his 70s, was found with stab wounds to his chest off Shortbrook Close, Westfield.Local police were called to the scene just before 11pm on August 9 and say they have detectives “working around the clock”.No arrests have been made as of yet, but police say “extensive” enquiries are underway.Detective Superintendent, Nikki Leach, from the Sheffield command team said: “We know that those in the local community, and more widely in Sheffield, will be really shaken and concerned by this incident yesterday evening.”She said: “I want to reassure the public that we have detectives from across the force working around the clock on this case to piece together the circumstances of what happened which led to a man being stabbed and very sadly losing his life.” We’ll be bringing you the very latest updates, pictures and video on this breaking news story. For the latest news and breaking news visit: /news Follow our social media accounts here on facebook.com/DailyExpress and @daily_express