Touching moment killer about to be hanged is spared execution by his victim's parents

This is just so touching and shows the power of forgiveness in it's purest form...An Iranian, Balal, was sentenced to death for stabbing 18-year-old Abdollah Hosseinzadeh Jnr, during a street fight seven years ago.

He was finally taken to the gallows to be hanged today and as they were getting for the victims parents to  to kick him off the chair(which is the tradition), the victims mother instead gave him a dirty slap and choose to forgive him, to the shock of spectators .She & her husband then removed the noose off the murderer's neck .
The killer's mother who didn't expect it was over-joyed then ran to hug her ..
The victim's father, Abdolghani Hosseinzadeh, revealed his wife had a change of heart after her dead son appeared to her in a dream.
He said:

 'Three days ago, my wife saw my elder son in a dream telling her that they are in a good place and for her not to retaliate.This calmed my wife and we decided to think more until the day of the execution

Do you think she did the right thing?See the pictures below

The killer's mum on the ground waiting for her son to be executed

The killer's mum rushed over to console victim's  mother

Victim's mother walks away in tears after forgiving him