Missions & their solution

[Deathwind]

I'm stuck on the goverment mission entitled "The Press", where I'm supposed to stop the leaflets being printed.
I've talked to the publisher who says he is being blackmailed and that someone comes by at "9 o'clock" each night to pick up the leaflets.
I've waited around for a full night and nobody came by, either at 21:00 or at 9:00 in the morning.
Is there something I'm missing?