Because FARC was saving them for a later time for blackmailing purposes
Because it wanted the Colombian government to once again set up a safe haven and force its troops to fall back.
FARC was suspicious about the government
FARC is evil
Because FARC refused to release a hostage
FARC hijacked one of Pastrana’s military’s planes. Pastrana saw this as the last straw and commenced war with FARC.
FARC killed a minister
FARC massacred more than 250,000 people
Because FARC acknowledged that they had lost the war.
Because it wanted to show a ‘gesture of peace’ towards the government and it wanted to promote peace talks again.
Because FARC didn't want the hostages.
Because FARC turned good.