KORONADAL CITY – Admitting the crime, a man wanted by law for hacking to death a close friend voluntarily surrendered to a jail official in South Cotabato Friday.South Cotabato provincial jail warden Juan Lanzaderas, a pastor, told DXOM-AM Radyo Bida that Alfie Tulabing, 38 of Koronadal City showed up to him and admitted the crime. He told me he was afraid to surrender to the Koronadal City PNP or village officials, Lanzaderas said.Tulabing admitted hacking Leonardo P. Catroverde, 51, following a heated argument Thursday night.