Get through the building | Act 2 - Ghost of Sarajevo Sniper: GW2 Guide

Jump outside from the library and enter the neighbouring building. Go up the stairs and turn into the rooms on the left. Inside you will come across a few dead bodies of people killed by snipers. They might be quite hard to locate, so you can quickly run onwards instead of trying out your skills. One of the snipers is lurking on the next building - you can see him through the window in one of the rooms [280m].

From the next room you will be able to eliminate two more snipers [275m] and [260m]. Their locations are rather hard to find, so make use of the radar and narrow the search area with the binoculars.