Video of moment Daniel Grogan and family meet up before killing Jay Sewell Lee south east London

This is the chilling moment a vengeful ex-boyfriend and his family met up to murder his former girlfriend’s new lover in a sickening attack.    

Trainee plumber Daniel Grogan, 20, became obsessively jealous after finding out Jay Sewell, 18, was seeing his ex-girlfriend Gemma Hodder, also 18, and plotted to kill him just days after. 

Harrowing footage shown during his Old Bailey trial reveals the moment he met up with his family and best friend to end Mr Sewell’s life in Lee, south east London.

In the clip they are seen gathering in a park, with a group of them hanging around by the boot of a car.

Within seconds, they are seen running through the park – and just moments later they set upon their helpless victim with a fireman’s axe, baseball bats, hammers and knives. 

Mr Sewell, who was sat in a car with friends and came from Eltham, south east London, died from a single stab wound to the chest. He was also knifed twice in the legs.

Grogan was jailed for life with a minimum term of 21 years at the Old Bailey last Tuesday.

Jay Sewell was murdered by Daniel Grogan

Daniel Grogan (left), 20, became obsessively jealous after he learned Jay Sewell (right), 18, had began a relationship with his ex-girlfriend Gemma Hodder, 18. He was jailed for 21 years

Mr Sewell was fatally stabbed on December 11 2018 on a street in Lee, south east London  after Grogan and supporters turned up armed, stabbing him through his car window

Mr Sewell was fatally stabbed on December 11 2018 on a street in Lee, south east London  after Grogan and supporters turned up armed, stabbing him through his car window

His mother Ann yelled ‘f***ing joke’ as she was locked up for seven-and-a-half years and a fight broke put in the public gallery when her husband Robert got 14-and-a-half-years in prison. 

Pictured: Gemma Hodder outside the Old Bailey

Pictured: Gemma Hodder outside the Old Bailey 

The jury heard how in the week before the attack, Grogan became jealous of Mr Sewell over his relationship with Gemma.

He repeatedly threatened to kill him and the pair arranged to meet on the night of December 11, 2018.

Mr Sewell went to meet Grogan with friends and Gemma in the hope of stopping the yob harassing them.

But they were ambushed by the weapon-wielding mob and he was stabbed while in the car.

An 18-year-old man was also knifed in the attack and he and Mr Sewell were taken to a South London hospital.

He was pronounced dead in hospital at 10.34pm but his friend survived.

The gang were jailed for a combined total of more than 60 years at London’s Old Bailey last Tuesday.

Grogan, of Lee, was handed a life sentence and must serve a minimum of 21 years behind bars.

His father Robert, 58, was caged for 14-and-a-half years for manslaughter, inflicting grievous bodily harm and violent disorder.

Robert Grogan was sentenced to 14 and a half years in prison

Ann Grogan was locked up for seven and a half years

Grogan’s parents Robert (left) and Ann (right), both 54, were found guilty of manslaughter, violent disorder. Robert was also convicted of wounding with intent. Mr Grogan was sentenced to 14 and a half years in prison. Mrs Grogan was locked up for seven and a half years

Grogan’s mother Ann, 55, was sentenced to seven and a half years for manslaughter and violent disorder.

Grogan's friend Charlie Dudley stabbed Mr Sewell. He was convicted of manslaughter, wounding with intent and violent disorder. He showed no emotion as he was jailed for 16 years.

Grogan’s friend Charlie Dudley stabbed Mr Sewell. He was convicted of manslaughter, wounding with intent and violent disorder. He has 16 years

His cousin Liam Hickey, 20, was jailed for three years for GBH and violent disorder.

Grogan’s friend and neighbour Charlie Dudley, 26, was jailed for 16 years for manslaughter, GBH and violent disorder.

His sister Francesca, 30, was previously sentenced to 12 months for violent disorder.

Her boyfriend Jamie Bennett, 32, was previously sentenced to 20 months in prison for violent disorder.

A 17-year-old boy who cannot be named for legal reasons was previously handed a nine-month rehabilitation order and a supervision order.

A victim impact statement from Mr Sewell’s mother Sharon Louch read: ‘It breaks my heart to know that Jay will never be able to fulfil his dreams.

‘He is my first thought when I wake up and last before I go to bed. I try my hardest to shield my children from the pain, but I can’t do it. They all know they will never see their brother again.

Family friend Jamie Bennett (above), 31, and a 17-year-old boy were convicted of violent disorder. He was sentenced last year

Family friend Jamie Bennett (above), 31, and a 17-year-old boy were convicted of violent disorder. He was sentenced last year

‘We as a family have taken whatever steps are necessary to ensure we have been there to support Jay and show him we care.

‘I have not worked and had so much time away from my children at a place in their lives when they need me the most.

‘There is no sentence this court or any other can pass which can come close to healing the pain or make up for not being able to look at my Jay’s face or hear him laugh.

‘I haven’t come here expecting or wanting it to. However, it does provide a glimmer of hope that those responsible have been held to account for their actions.

‘Jay you were a blessing and made us proud from the day you came to us until the moment you were taken.’

Francesca Grogan

Liam Hickey got three years

Grogan’s sister Francesca (left), 29, was found guilty of violent disorder and sentenced last year. His cousin, 19-year-old Liam Hickey (right) was convicted of violent disorder and wounding with intent and jailed for three years

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