Taken hostage than plot twist: the hostage kills everione and is a child abductor

Its a movie where a group of shooters take a woman hostage, than hijack an older mans’s car. He had his baby with him and kept saying that she will die if they dont get to a hospital. At the end of the movie when they all settle in a hideout(a small village), PLOT TWIST he kills everyone, takes the cash and the last scene where he is driving away, the narrator says “two days ago a 5 year old girl was kidnapped”