A female Audi driver who was high on 'hippy crack' killed a musician as he spoke to his father on the phone.
Tiffany Treanor-Johnson, 27, had taken the Class C drug nitrous oxide, also known as laughing gas, and was speeding at 53mph in a 20mph zone when she hit Harry Webb, 27, and drove off.
Harry was cycling on a hands-free phone call with his parents thanking them for helping him move house across London just hours earlier in September 2023.
Treanor-Johnson, then 24, was doing more than double the speed limit when she hit Harry on the pavement causing a traumatic brain injury.
She then drove off leaving him fatally injured on the side of the road in Hackney. He died two days later from his injuries.
A motorist who saw the crash tried to stop Treanor-Johnson, who was in the car with two friends, from driving away but was not successful.
Harry's parents Mike and Pat, both 66, listened to the horrific crash unfold on the phone.
A stranger then picked up their son's phone after he heard Mike's shouting and told them their son had been hit by a car.
Tiffany Treanor-Johnson, 27, was high on the Class C drug nitrous oxide speeding at 53mph in a 20mph zone when she hit Harry Webb, 27, in September 2023 and drove off. He died two days later
Harry Webb, 27, was on a phone call with his parents, in September 2023, thanking them for helping him move house across London when Treanor-Johnson hit him with her Audi
Mike said: 'The passerby we spoke to told us that Harry had his helmet on. He was trying to reassure me, I think, but we could hear the sirens.
'We then got told an ambulance had arrived and was taking Harry to hospital.
'We both packed some things into a bag thinking he'd got a broken leg or something.
'That was until a surgeon from the hospital rang us. They said we needed pull over so we did. Then we were told Harry had suffered major brain trauma and he likely would not survive.
'He died two days later surrounded by his family and about 20 of his friends.
'He had only rang up to say: "Thanks mum, thanks dad" for helping him with the move.'
The collision happened on Kenworthy Road, Hackney, a road notorious for traffic collisions.
Mike said campaigns had been ongoing for 15 years to make the road safe where his son was killed.
Harry, who was studying music production at the London College of Contemporary Music, was cycling to London Fields Lido for a swim when the crash happened.
Treanor-Johnson changed her plea on the day of the trial to guilty, admitting to causing death by dangerous driving. She originally pleaded not guilty.
At the time of the crash nitrous oxide was not illegal to possess in the UK.
It was reclassified as a Class C drug on 8 November 2023.
Mike said Treanor-Johnson showed 'no remorse' for killing his son.
'She has been totally in denial of what she's done,' he said.
Harry, who was studying music production at the London College of Contemporary Music, was cycling to London Fields Lido for a swim when he was hit by the car
Harry's mother Pat was also shocked at the lack of remorse shown after her son's death.
She said: 'After all of this time we have not heard anything from her or her family - not even an: 'I'm sorry' or a: 'Sorry for your loss'. Nothing.
'It has all been about her, about how hard her childhood was and other things, when we are the victims - our son is dead. He has been robbed of his future.'
Judge Rosa Dean remanded Treanor-Johnson in custody and adjourned the sentencing at Snaresbrook Crown Court until July.
The judge said: 'It does look like you have tried to bury your head in the sand, leaving it up to the day of the trial to accept you have no defence and accepting your responsibility.
'You are looking at a substantial period of imprisonment. It seems to me there is a substantial risk that, were I to grant you bail, you would bury your head in the sand again.'