Pensioner admits murdering father and son in separate attacks in quiet Cambridgeshire villages over 'custody battle'

28 June 2023, 16:27 | Updated: 28 June 2023, 16:33

Two people arrested over double shooting in Cambridgeshire released without charge
Two people arrested over double shooting in Cambridgeshire released without charge. Picture: Alamy/Cambridgeshire Police

By Kit Heren

A 67-year-old man has pleaded guilty to murdering a father and son at separate addresses in two sleepy villages in Cambridgeshire.

Listen to this article

Loading audio...

Stephen Alderton, of no fixed abode, denied one count of possession of a firearm - a double-barrelled shotgun - with intent to cause fear of violence to another person.

Alderton killed father-and-son builders Gary and Joshua Dunmore, aged 57 and 32 in Bluntisham and Sutton on March 29.

The defendant shot Joshua Dunmore twice in the hallway of his home in Bluntisham at 9.09pm.

He then shot Gary Dunmore three times in the hallway of his home in Sutton 31 minutes later.

Josh Dunmore
Josh Dunmore. Picture: Social media

Alderton drove off in his campervan but was arrested at about 1.30am the following day on the M5 near Worcester, police said. He was interviewed by police but did not answer any questions.

Appearing at Cambridge Crown Court on Wednesday, the murderer was remanded in custody ahead of sentencing on October 2020.

The Dunmores were said to have been killed amid a custody battle. Josh had recently succeeded in blocking his former partner from taking his son to the US.

Tribute left to Josh Dunmore at the scene
Tribute left to Josh Dunmore at the scene. Picture: Alamy

He was "buzzing" to have been given the good news and spend time with his son over the Easter holidays, friends said.

In a heartfelt tribute left at the police cordon after their killings, one of Josh's friends wrote: "To Josh. I cannot believe I am writing this. This week was meant to be a celebration for you and your precious boy," the MailOnline reported.

"I pray that you can rest in peace knowing you fought every day for [the boy]. Everything you done was for him and he will forever know this."

Police after the shootings.
Police after the shootings. Picture: Alamy

Their family also paid tribute to the "devoted" and "loving" pair.

They said in a statement that Josh "was a wonderful son and brother and leaves behind an extensive group of family and friends. He will be deeply missed and the devastation this has caused will never heal."

They added: "Gary was the most devoted son, brother, dad, and grandad, who gave everything for those he loved.

"He was a gentle and generous person who always put others before himself, and he'll be massively missed by his family and all those who knew and loved him."

A floral tribute to Gary Dunmore, left outside his home in The Row, Sutton, said: "To my dear neighbour Gary.

"A man who loved his family dearly, a dear friend to all, so helpful and kind and was always around as a friend and my little odd job man.

"I'm going to miss you."

A further tribute said: "RIP Gary. Absolutely gutted."

Flowers left at the scene at The Row in Sutton, near Ely, Cambridgeshire
Flowers left at the scene at The Row in Sutton, near Ely, Cambridgeshire. Picture: Alamy

Read More: Three arrested after two men shot dead in 'targeted attacks' in quiet Cambridgeshire villages

A floral tribute left to Josh Dunmore in Bluntisham said: "So sad a young life to be taken like this and a little boy now with no daddy.

"Thinking of the family. RIP Josh X."

Another tribute said: "We have no words for such tragedy in our quiet village.

"Our prayers are with all involved. Rest in eternal peace."

Residents in Bluntisham were initially ordered to stay indoors by police as a helicopter circled overhead.

More Latest News

See more More Latest News

Air India plane makes emergency landing in Thailand less than 24h after Gatwick flight horror

Air India plane makes emergency landing in Thailand less than 24h after Gatwick flight horror

Andres Felipe Valencia Barrientos, the British YouTuber and rapper known as ‘Yung Filly' is seen leaving the Perth Magistrates Court in Perth, Thursday, December 19,

British rapper Yung Filly facing additional charges linked to sexual assault of woman in Australia

People look over damage to buildings following Israeli airstrikes on June 13 in Tehran.

Middle East braces for 'all out war' after Israel strikes against Iran and Tehran responds with 'around 100 drones'

Smoke rises up after an explosion in Tehran, Iran, Friday, June 13, 2025.

Israel launches strikes on Iran 'nuclear sites' with explosions heard in Tehran - as US says it's 'not involved'

Exclusive
Sir Sadiq Khan has told LBC News that he's concerned knife crime could rise because the Met Police weren't given more funding in Rachel Reeves' spending review.

Sadiq Khan warns knife crime could rise after Met Police miss out in Rachel Reeves' spending review

Officer Clive Kunder, top right, and Captain Sumeet Sabharwal, bottom right, warned the plane was losing power moments before it crashed.

Air India pilot's chilling 'mayday' call as he warned plane was 'losing power' moments before crash killed 229 on board

The PSNI chief said the initial lawful and legitimate process before unrest broke out was done in a way that was responsible and empathetic to the victim.

Police come under attack for fourth night in Northern Ireland as force say 'bigots and racists' behind unrest

Tottenham have appointed Thomas Frank as their new head coach, the Premier League club have announced.

Thomas Frank joins Spurs as new boss on three-year deal

A family-of-three, a wellness influencer couple, and a hotel manager travelling with his wife and two children, are among the Brits who were on board the Air India Flight.

The Brits on board crashed Air India flight as 52 UK nationals confirmed dead

Air India confirms only one survivor from 242 people on board Ahmedabad plane crash

Air India confirms only one survivor from 242 people on board Ahmedabad plane crash

Pro-Palestinian activists shout slogans while waving Palestinian flags as around one and a half thousand participants in the Resilience Convoy depart from Tunis, Tunisia.

Egypt deports and detains dozens of activists participating in march to Gaza in bid to end Israeli blockade

Aria Aber, Miranda July, Nussaibah Younis, Elizabeth Strout, Sanam Mahloudji and Yael van der Wouden attend the 2025 Women's Prize Winner's Ceremony, taking place at Bedford Square Gardens, London.

'A classic in the making': Debut novel by Dutch author wins 2025 Women’s Prize for Fiction

Walker looking out over the peak of Yr Aran and a fog filled Nant Gwynant Valley

Two women dead after 'incident' in Snowdonia National Park

The Belgium midfielder was warmly greeted by fans in Italy as he arrived for his medical on Thursday having agreed a deal with the Serie A champions

Kevin De Bruyne joins Napoli on free transfer after Man City exit

Sverre Halseth Nypan of Rosenborg during the Eliteserien match between Bodø/Glimt and Rosenborg on May 24, 2025 in Bodø.

Manchester City agree £12.5m fee for Rosenberg teen Sverre Nypan as summer spending spree continues

David Walliams attending the gala screening of Queer, at the Curzon Mayfair in London. Picture date: Tuesday December 10, 2024.

David Walliams 'gives two Nazi salutes' during recording of popular game show