Make your way out the TF29 HQ and go back up into the front store, Praha Dovoz. You can access the Computer on the desk. You can learn a little more about the hack on the place by using this computer.
Once outside Praha Dovoz, turn to the West and follow the road to the next corner. Go inside the apartment building.
Go to the North and into the Courtyard.
There are a few ways to get inside the apartment. You can either hack your way in (Security 2) or you can jump down to the window.
To get to the window, you will need to go up to the Third Floor. Once there, go to the right of the door. You will find a ledge just to the left of the balcony to the right of the door. Move along the ledge and open the window.
On the desk in this room is a computer. Access the computer (Security Rating 1) and start the hack. It is a map where you cannot see beyond the present nodes and what they are connected to.
Once inside the computer, go into the e-mail. This tells you some about this Samizdat which sounds like a magazine. Now, access the messenger below the e-mail tab. K will message you immediately asking why you are online. First, Inquiry for What's the rush?. Next use Question for Sounds like something we should talk about in person. Where are you?. K will tell you he is underground and that you can find him by using the manhole either by the Music Store or the Old Church.