(LEAD) (News Focus) Key N.K. official's death to hamper inter-Korean ties in short run: experts

(ATTN: CORRECTS info in paras 4-5,11,15) By Kim Soo-yeon SEOUL, Dec. 30 (Yonhap) -- The death of a top North Korean official handling inter-Korean affairs may strain Seoul-Pyongyang ties in the short run, experts said Wednesday, amid murky outlooks f