A “LONER” pie heir who stabbed his only friend to death in a Christmas Eve horror attack has been found guilty of murder.
Screams of horror were heard as Dylan Thomas stabbed William Bush 39 times with a flick knife at the home they shared in Llandaff.
The pair had lived together for “some years” after meeting at £13,000-a-term Christ College.
But William, 23, had been planning to move in with his girlfriend Ella Jeffries – causing Thomas to hatch the gruesome plot.
The 24-year-old, who is heir to a £230million fortune, has now been found guilty of murder.
Cardiff Crown Court heard Thomas lured his “only friend” William into meeting him as the rugby player prepared to meet his family for Christmas.
The killer carried out chilling online searches as he prepared for the attack – including looking for “anatomy of the neck”.
In a cruel twist, Thomas had actually been arrested just one month before the murder over a “serious” attempt to climb into Buckingham Palace.
But the monster was released on bail for scaling the 14ft fence – meaning he was free to kill his housemate.
On the day of the bloodbath, Thomas was given a lift back to the shared home by his gran Sharon Burton after claiming he needed to walk his dog Bruce.
He instead entered the house and attacked William in his bedroom from behind.
After being stabbed in the back of the neck, William fled “for his life” but was knifed 39 times.
Injuries to Thomas’ hands showed the victim had been “literally fighting for his life against an armed attacker”.
Gran Sharon had been waiting in the car for her grandson, who emerged five minutes later banging on the door.
She told police: “I jumped out and Dylan was just covered in blood and practically falling down on the floor.
“I ran into the house. I could see Will on the floor and straightaway I started to do CPR on him and didn’t stop until ambulance people came.
“I thought I felt a pulse but I don’t know because my adrenaline was so crazy.
“I cut off my daughter and handed the phone. I tried to dial 999. I called Dylan and told him to ring police and ambulance and that’s what he did.
“I stayed there until police arrived and told them to come quickly. They seemed to be taking ages
“There was nothing there with Will. His eyes were open. I thought I felt him moving but there was nothing there.”
The gran police that she was “in a nightmare” and thought “What the hell has happened?”
She added: “I wish I’d never taken him. I would never have envisaged anything like that from Dylan, not in a million years.”
Bodycam showed Thomas being arrested while covered in blood with his cut hands held out in front of him.
A police officer asked him: “Where’s the person who did this?”
Thomas replied: “I think he is dead, I f****** disarmed him”.
He later told police he stabbed William in self-defence, insisting his friend had been “having an episode”.
The court heard Thomas had been experiencing psychosis “up to six months before the event”.
When he was arrested for the Buckingham Palace incident, he told police he could harness gravity and was trying to explore energy fields between Buckingham Palace and Cleopatra’s Needle”.
Thomas admitted manslaughter but denied murder – claiming diminished responsibility at the time of the killing.
He was remanded to be sentenced on a later date.
