Go to the marker in the south-west corner of Paramount district and interact with it in order to enter the inFamous Paper Trail website. If you have followed all the steps described in Part 1 - Things to do outside the game, the game will allow you to start the second mission (see picture above), which requires you to locate Killian Czalov's phone by tracking GPS signal. Press up on the D-pad to start this mission.
As Czalov's phone signal is initially very far from the main character, you should use, e.g. Light Speed ??ability, and check the phone between consecutive dashes in order to determine if you are moving in the right direction. The point of destination is an alley located in the western part of Pioneer Square district (the same area where you started inFamous: Paper Trail), which you will recognize by the fact that some hostile characters appear on the mini-map as red icons. I suggest you move to the rooftops of the surrounding buildings and discern the situation undisturbed.
It is best to attack the drug traffickers gathered in the area with a heavy blast in the ground performed from the air, although you can also, for example, shoot at them from rooftops. You have to deal with all enemies, because it is only then, when access to the new crime scene is unlocked. Go to the camera icon and start taking photos of key elements of the environment. Namely, you have to take photos of two different parts of the victim's body as well as of the red container on the right.
Shortly after taking the pictures, the main character sees a tracker drone captured by drug traffickers. Go after the drone and try not to lose it. Using Light Speed ??(Neon) or Smoke Dash (Smoke) ability is not necessary for keeping a safe distance from the drone. Neither you need to stay on rooftops. It is worth noting that in whenever you lose sight of the drone for a moment, you can still keep following it, as its position is displayed on the mini-map.
The tracker drone will lead you to a tunnel beneath Georgetown district, where you will have to face another group of drug traffickers. I suggest you attack the enemies from a large distance, the more that there are not many physical obstacles in the area, which could serve as covers for Delsin. After eliminating all the opponents, go to the captured tracker drone and check the contents of its box.
The last thing to do, is to get to the evidence transfer location in the western part of Pioneer Square district.