officer jesse kidder was confronted by michael wilcox , 27 , in ohio .
suspect allegedly shot his fiance and best friend in separate incidents .
during a police chase he got out of his car and charged at kidder .
wilcox repeatedly said ` shoot me ' , but the cop constantly refused .
eventually wilcox submitted and surrendered to kidder and his partner .
the former marine had only been on the new richmond force a year .