way ▁station , ▁w ounding ▁ 6 ▁people . ▁On ▁ 2 5 ▁March ▁ 1 9 8 5 , ▁M IR ▁gu err illas ▁plant ed ▁a ▁bomb ▁in ▁Hotel ▁Ara uc ano ▁in ▁Con ce pc ion ▁that ▁killed ▁marine ▁ser ge ant ▁René ▁Os val do ▁L ara ▁Ar ri ag ada ▁and ▁army ▁ser ge ant ▁Ale j andro ▁del ▁Car men ▁Av end añ o ▁S ánchez , ▁who ▁were ▁attempting ▁to ▁def use ▁the ▁bomb . ▁On ▁ 6 ▁December ▁ 1 9 8 5 , ▁a ▁car ab in ero ▁( Pat ric io ▁Rod rig uez ▁N ú ñ ez ) ▁was ▁shot ▁to ▁death ▁by ▁four ▁gu err illas ▁who ▁opened ▁fire ▁on ▁him ▁with ▁subm achine - g uns ▁as ▁he ▁walked ▁home . ▁That ▁same ▁month , ▁ 1 5 ▁city ▁bus es ▁were ▁destroyed ▁with ▁gas oline ▁bomb s ▁and ▁urban ▁gu err illas ▁hur led ▁a ▁bomb ▁under ▁an ▁incoming ▁train ▁in ▁Santiago , ▁before ▁making ▁good ▁their ▁escape ▁after ▁a ▁shoot out ▁with ▁polic emen . ▁The ▁total ▁number ▁of ▁documented ▁terror ist ▁actions ▁during ▁ 1 9 8 4 ▁and ▁ 1 9 8 5 ▁was ▁ 8 6 6 . ▁ ▁On ▁ 5 ▁February ▁ 1 9 8 6 , ▁a ▁car ▁bomb ▁destroyed ▁a ▁bus ▁filled ▁with ▁ri ot ▁police , ▁m util ating ▁ 1 6 ▁polic emen . ▁One ▁car ab in ero ▁( 4 1 - year - old ▁Serge ant ▁Luis