   Mother begs cornered South Korean soldier son who killed five
colleagues to surrender   The parents of a South Korean
conscript soldier who killed five of his comrades in a grenade
and gun attack pleaded with him to surrender on Sunday after he
exchanged fire with troops who had tracked him down near a
school close to the North Korean border.  Late on Saturday
night, the soldier threw a grenade and opened fire, killing five
members of his unit and wounding seven others at an outpost in
the base at Goseong county.  A manhunt went into full swing at
daybreak, with helicopters sweeping the heavily forested
hillsides while special forces took part in a search that,
according to a colonel who briefed media, involved the
equivalent of nine battalions. Discovered hiding near a school
about six miles from the base, the soldier opened fire on
troops, wounding a platoon leader in the arm, the YTN television
news channel reported.  The parents of the soldier, according to
the Yonhap news agency, were taken to the sit