Hi,
Interesting idea.
One query I have is in the use of the word 'secretly'. How can you secretly do something democratically? In order to be democratic, the people need to be aware what they are driving (e.g. in order to vote democratically you would expect to know who the leaders are and their platform and then have the freedom to choose who you want with the majority ruling).
Is it that someone commits a crime which is publicly condemned - hence 'the public have spoken'?
If this is the case, perhaps reflect it in your logline as it's a little bit confusing.
Also it looks like he wants to be killed while killing so that he doesn't have to commit suicide? If death is his goal you may have trouble creating a strong hero. Otherwise he'll just kill the bad guy and then, hopefully, die. Which wouldn't be overly heroic, more defeatist. Suicide in many ways is selfish as well. Heroes should be selfless - dying for yourself isn't as heroic as dying for others.
I'm guessing though that your hero gains a new life at the end of the film or that he ultimately dies for others - making him a hero and fulfilling his desire.
You could go along the line of:
"Suffering a crisis of faith, a suicidal hitman who wants eternal life repents by endeavoring to kill an evil mass murderer who has the public gripped by fear"
Just a thought. Good luck :)