The skinny male creeps up behind Flor Alba Nunez Vargas before ending her life with a single shot to the back of her head as she waits to be let into her radio station.
WARNING – DISTRESSING FOOTAGE
And CCTV footage being studied by police shows him barely breaking into a run as he leaves the scene of his horrific crime and heads back to the motorbike where an accomplice is waiting for him.
Last night the Colombian government announced a cash reward for information leading to the arrest of the killers.
Flor, 25, was known in Pitalito, Huila, south west Colombia, where the horrific crime occurred as a tireless campaigner against drugs and people trafficking and corruption.