The devastated father of murdered schoolboy Olly Stephens says his son's senseless "execution" has ripped the soul from his broken family.

The children who lured the autistic 14-year-old to his death in a planned ambush have today been locked up for a combined 28 years.

The trio tricked the teen into coming to a popular dog walking field where he was met by two other boys and stabbed to death in a frenzied attack.

Dad Stuart slammed the "vain, selfish girl" who set up the "callous" attacked near his home in Reading, Berkshire.

The teen, now 14, arranged the ambush last year and did not stand trial having already admitted manslaughter.

Olly Stephens' father told the girl who lured the boy to his death that she is "vain and selfish" (

Image:

BerkshireLive/ Grahame Larter)

Dressed in a black suit clutching his son's London Irish rugby jersey, he read a heartfelt statement describing the family's torment, vowing to never forgive them for what they did.

"This has completely broken us," he said at Reading Crown Court.

"As I held his hand begging him not to leave us, a few questions came my way.

"What kind of evil could lure a child to his death?

Olly was described as a 'loving, caring, funny soul' by his family (

Image:

PA)

"The callousness of the act has left us chilled us to the bone. This was nothing short of an execution.

"Olly was the last born male in our family line. That ends too."

The tormented father added: "Olly died knowing the cruel actions of a very selfish girl left him trapped and slain.

"Olly was blameless. All because of the three of you we stand here in this moment. As a family we hold each of you accountable for his murder. There are no excuses and there will be no forgiveness ever."

Stuart Stephens told of the moment he sprinted to find his son dying (

Image:

BerkshireLive/ Grahame Larter)

Olly, who had autism, was stabbed twice after he refused to apologise for a social media post - and he died in the arms of his dad in an ambulance.

The father said his boy could not sense danger and stood up for himself in the face of confrontation.

He continued: "Oliver fought with his last breath, until his heart gave out. He had such a big heart, it was his Achilles heel.

"Olly was our joy and the glue that held us together. Amanda and I took it in turns to say goodbye to Oliver.

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"His bloody open mouth, his eyes half-closed, the ambulance within spitting distance of our home. A nightmare."

The three defendants, all now 14 years old, cannot be named because of their age.

Alison Morgan QC, prosecuting, told the court that both of the boys were equally culpable for Olly's murder, despite only one of them stabbing him.

She also rejected the female defendant's claim that she arranged the set-up 'as a result of some sort of intoxication on her part', BerkshireLive reports.