n ance ▁used ▁in ▁the ▁attack . ▁ ▁It ▁has ▁been ▁considered ▁the ▁biggest ▁blow ▁against ▁F AR C – EP ▁in ▁its ▁more ▁than ▁four ▁dec ades ▁of ▁existence . ▁This ▁event ▁was ▁quickly ▁followed ▁by ▁the ▁death ▁of ▁I ván ▁R íos , ▁another ▁member ▁of ▁F AR C – EP ' s ▁seven - man ▁Secret ariat , ▁less ▁than ▁a ▁week ▁later , ▁by ▁the ▁hand ▁of ▁his ▁own ▁body guard . ▁It ▁came ▁as ▁a ▁result ▁of ▁heavy ▁Colomb ian ▁military ▁pressure ▁and ▁a ▁reward ▁offer ▁of ▁up ▁to ▁$ 5   mill ion ▁from ▁the ▁Colomb ian ▁government . ▁ ▁After ▁the ▁attack , ▁the ▁Colomb ian ▁military ▁forced ▁managed ▁to ▁secure ▁ 6 ▁laptop ▁computers ▁belonging ▁to ▁Re yes , ▁in ▁which ▁they ▁found ▁information ▁linking ▁several ▁left ▁wing ▁Colomb ian ▁personal ities , ▁such ▁as ▁polit icians , ▁journal ists ▁and ▁human ▁rights ▁activ ists ▁with ▁terror ist ▁activities . ▁ ▁Manuel ▁Mar ul anda ▁Vé lez ▁died ▁on ▁ 2 6 ▁March ▁ 2 0 0 8 ▁after ▁a ▁heart ▁attack . ▁His ▁death ▁would ▁be ▁kept ▁a ▁secret , ▁until ▁Colomb ian ▁magazine ▁Sem ana ▁published ▁an ▁interview ▁with ▁Colomb ian ▁defence ▁minister ▁Juan ▁Manuel ▁Santos ▁on ▁ 2 4 ▁May ▁ 2 0 0 8 ▁in ▁which ▁Santos ▁mentions ▁the ▁death ▁of ▁Manuel ▁Mar ul anda ▁Vé lez . ▁The ▁news ▁was ▁confirmed ▁by ▁F AR C – EP ▁commander ▁" T imo chen ko " ▁on ▁Latin ▁American ▁television ▁station ▁tele