This was a single family, and reports of what really happened are confused: apparently, they wanted to leave the station, and some say the husband tried to protect his wife and child when cornered and they feared they will be separated. They were taken away (and separated) like this:

Meanwhile, at Keleti, police again filters passengers boarding the next train, apparently recognising that the fooling of the refugees didn't work.

_{*Lunatic*, n.
One whose delusions are out of fashion.}