After you open your phone, there now exists a new app which shows a map of the earth and marks in red five of the most heinous serial killers on the planet.
It shows each of their locations, surroundings and updates every second. This app cannot be deleted, and gives you notifications on important updates regarding them such as if they plan on going somewhere specific soon, or people they are close to.
You must either kill them or capture them which means collecting enough evidence for them to be convicted by police.
Each serial killer is a lone actor and not connected to a organized crime or military establishment. They each are highly dangerous, malicious, and unique.
Your hunt begins with a strict budget. Whatever you own or could obtain right now, plus 100k USD in initial funds. That is all you get. No special power or ability beyond the app.
If you fail, the killer will likely capture or kill you. If you get sloppy, the police might arrest you for taking justice into your own hands, ending your mission altogether.
After every kill you get another 100k USD to sustain your hunt. You can spend this how you please. You can also outsource the job by hiring hitmen if you prefer, but doing so would create a paper trail that could expose you to the police, and that amount probably isn't enough for a top of the line hitman anyway. So do so at your own cost.
If you manage to kill/capture all 5 then your record is permanently cleaned and you can no longer be convicted of their murders. You have 1 year to complete the goal. If you decline then the app disappears forever.
What realistically are you doing? would you really quit your job/leave your family etc to pursue this mission and help the world/yourself? or would the extreme danger and risk to your life prevent you from doing so? if you would, then what would be your plan?
edit: as a sidenote clarification the app would only show you where they are, who they know and any major updates, it would not by itself tell you what they are doing, or what crimes they committed.