The sister of a schoolboy stabbed in a park has paid an emotional tribute to him following his death.
Oliver Stephens was found dying from stab wounds shortly before 4pm on Sunday at Bugs Bottom fields, Emmer Green, on the outskirts of Reading, Berkshire.
Police are examining phones and Snapchat messages belonging to Oliver and the young suspects to try and establish a motive, The Sun reported.
The day after the teenager was killed his sister led tributes to the Highdown School pupil.
“I’m so sorry I failed you, I wish I could have saved you from it all,” the youngster wrote on social media: “We will get justice for you my angel.”
She posted a touching image of Oliver on Instagram alongside the post, including one of him as a baby.
Five teens – four boys and a girl, all aged between 13 and 14, and from Berkshire – have been arrested on suspicion of conspiracy to commit murder.
All five are currently in police custody.
The murder scene is only 230m from home where Olly lived with his sister, mother Amanda, who works in HR, and father Stuart, both aged 51.
Several bouquets of flowers have been laid outside Olly’s school.
In one tribute, a mother of children at Highdown School described Oliver as a “lovely lad” who was adored by those at the school.
It read: “Dearest Olly, taken away too soon. You were such a lovely lad, loved by many.
“Thinking and sending love to your family at this sad time.”
Headteacher Rachel Cave said the school had been left reeling by the killing.
In a statement, she said: “For a life to be ended at such a young age is a total tragedy.
“Our thoughts and prayers are with his family.
“Many have been deeply affected by this tragedy.”
A young girl who knew Olly at primary school said he was “kind and compassionate”, Mail Online reported.
“At his last primary school play he was Gaston from Beauty and the Beast,” she said.
“A friend of mine was upset at something one time and I remember Olly consoled her and told her everything was going to be all right.
“He was really nice.”
Another friend recalled how he had played Disney songs on his electric guitar at a school talent contest.
Matt Rodda, Labour MP for Reading East, urged people with information about the crime to come forward.
“The fact it has happened in broad daylight in a popular park in a quiet area makes it something that is particularly disturbing for many people,” he told the Reading Chronicle.
George Roberts, who lived close to the park, described the attack as “heartbreaking”,
He said: “I never thought that a crime like this would happen here, it’s usually quiet.
“We usually get some antisocial behaviour in the park, but nothing like this.”
Senior Investigating Officer Detective Superintendent Kevin Brown, head of Thames Valley Police’s Major Crime Unit, said: “Our thoughts remain with Olly’s family at this incredibly difficult time.
“I would urge anyone who has any information that they believe is relevant to this investigation, no matter how small you think it is, to please get in touch.
“If you do have any images or footage I would ask that you please do not share it on social media, but instead report it to us.