A person who is killed because of their religious or political beliefs.
A person who suffers very much because of an illness, problem or situation.
Putting him to death would only make him a martyr. (Oxford)
He makes a martyr of himself whenever it’s his turn to do the housework. (Oxford)
make someone a martyr
makes a martyr of himself
Immolate
Kill
Confessor
Murderer
Martyrdom