Police officers investigating Barron Hilton's fight with blogger Ray LeMoine have closed the case after the socialite reportedly refused to co-operate. Paris Hilton's younger brother was allegedly punched in the face by LeMoine following an all-night party at a rented mansion on Star Island, off the coast of Miami Beach in Florida, earlier this month (Dec13). He subsequently documented his facial injuries in a picture posted on his Instagram.com page, but Miami cops have been unsuccessful in reaching the 24 year old to get his side of the story. As a result, authorities have had no choice but to bring their investigation to an end, according to TMZ.com. Florida state attorneys will reopen the case if Hilton decides to step forward.