His lawyers had argued he should receive a prison sentence because his victims, aged between 15 and 26, expressed suicidal thoughts on social media and so had consented to death.
Shiraishi lured people who posted online comments about suicidal thoughts to his home, where he killed and butchered his young victims. All but one of those murdered were women, and they ranged in age from 15 to 26.
An Asian was sentenced to death by Al Ain Court for murdering his roommate.
Krishnan, who finally left the UAE for Kerala, where he met his family, thanked Yusuff Ali for the efforts he exerted to communicate with the family members of the Sudanese boy, which led them to agree on the compensation.
The petition states that the special court has not taken into consideration that no actions detrimental to national interest were taken by the applicant.
Junaid Hafeez, 33, was arrested in March 2013 for allegedly posting derogatory remarks against Prophet Mohammed on social media.