Both were also handed life imprisonment and are required to pay a fine of Rs1 million each
The court also handed down 10-year imprisonment and Rs 300,000 in fine to each of them for committing the heinous act.
A helpline 1099 will be established under the law besides the constitution of an agency to take immediate action after responding complaints about abduction, murder and rape of minor children.
The petitioner said that high treason act did not apply on Pervez Musharraf.
According to the local police, Ayub had locked the children in a room and mercilessly killed them while the children’s mother was not present.
'This verdict will be more controversial as compared to Zulfikar Bhutto case'
The convicts had killed a man outside the residence of Justice Zawar Hussain in Karachi, the police said and added that the deceased was reportedly a friend of Hussain's son.
The killing horrified the US public and kindled memories of the era of racist lynchings of African-Americans in the South.
Mashal Khan’s father on Friday challenged the anti-terrorism court’s verdict in his son’s lynching case in the Peshawar High Court (PHC) and pleaded to turn the convicts’ life imprisonment into death penalty.
The ruling will further strain an already tense relationship with Canada in wake of arrest in Vancouver of Meng Wanzhou, chief financial officer of Huawei.