Vengence is mine, says the mother

He who does evil things will have it roll back on him,
And he will not know what hit him.
Mockery and abuse come back on an arrogant man,
And vengence lies in wait for him like a lion.

Sirach 27:27-28

Generally what is called in the law “self-help” is discouraged. However, it is quite understandable why a key part of this story notes, “The woman fled to Alicante, where she was arrested the same evening. When she appeared in court the next day in the town of Orihuela, she was cheered and clapped by a crowd, who shouted ‘Bravo!’ and ‘Well done!'”

Mother sets fire to daughter’s gloating rapist. From The Daily Telegraph.