Crime Caerphilly Caerphilly

Life‑sentenced killer appears in court after admitting offences committed behind bars

A man serving a life term for the 2015 killing of an 18‑year‑old has been sentenced again after admitting to possessing a mobile phone in custody and acquiring money believed to be criminal property. The case at Cardiff Crown Court also involved three co‑defendants from the south Wales area.

Life‑sentenced killer appears in court after admitting offences committed behind bars
©Illustration AI Thomas Taylor / inforadar.co.uk

A man already serving a life sentence for the 2015 killing of an 18‑year‑old at a caravan park has been returned to court after admitting further offences while detained.

New charges linked to prison contraband and criminal property

David Braddon, 38, who was convicted of the murder of Conner Marshall at Trecco Bay caravan park, Porthcawl in March 2015, appeared at Cardiff Crown Court where he admitted acquiring money believed to be criminal property while in prison and possessing a mobile phone in custody.

The fresh proceedings came more than a decade after Braddon was handed a life term for the fatal assault in which the teenager suffered catastrophic injuries and later died in hospital. The original case had drawn widespread attention across south Wales because of the severity of the attack.

Co‑defendants from the region also dealt with by the court

Braddon was sentenced alongside three co‑defendants. They were named in court as:

  • Claire Jones, 39, of Clydach Road, Tonypandy — formerly a probationary prison officer at HMP Parc;
  • Karen Graham, 57, of Lansbury Park, Caerphilly — identified as Braddon’s mother;
  • Gemma Phillips, 41, of Carlton Mears, Suffolk — described as Braddon’s former partner.

Prosecuting counsel told the court that Jones had been employed as a probationary officer at HMP Parc until November 2022 when she failed her probation and was dismissed. Messages sent from a Facebook account appearing to be Jones’s were said to have been used in attempts to arrange contact with serving staff at the prison, specifically a request made to a serving officer, William Scott, to attend a cell.

"...I felt 'complete and utter terror' on hearing the news her son's killer would be back in the news,"

A personal statement from Conner Marshall’s mother, read to the court, recorded the distress caused by the renewed publicity. She described a sense of terror and said seeing Braddon’s face brought her back to the day police called with the original news about her son.

Context and local impact

The case highlights ongoing problems with contraband in prisons and the risks that unauthorised communication and illicit finances can pose to order and safety behind bars. HMP Parc, located within south Wales, has featured in the proceedings because of its connection with the personnel and messages referred to in court.

For communities in and around Caerphilly and the Valleys, the matters rekindled painful memories of the 2015 killing, which had a lasting impact on family and local residents. The court appearance underlines that serious convictions do not always end the legal or social consequences of an offence.

Item Detail
Original offence Murder of Conner Marshall at Trecco Bay caravan park, Porthcawl (March 2015)
New admissions Acquiring criminal property; possessing a mobile phone in prison
Court Cardiff Crown Court
Co‑defendants Claire Jones (Tonypandy); Karen Graham (Lansbury Park, Caerphilly); Gemma Phillips (Suffolk)

The prosecution presented evidence of messages and contacts made through social media, suggesting attempts to facilitate communication and the movement of items into the prison estate. One serving officer named in court declined to follow a request to attend a cell, and the matter was subsequently referred to authorities.

Sentencing remarks and details of any additional custodial terms imposed in relation to the admissions were delivered at Cardiff Crown Court as part of the hearing. The involvement of a former prison officer and family members has prompted renewed scrutiny of how prisons police internal standards and how external contacts are monitored.

Local residents and relatives of victims often find court renewals of this nature distressing. Agencies responsible for prison oversight and public protection say they continue to take reports of contraband and improper contact seriously and to investigate where necessary.

Further reporting from the court will follow as official sentencing documents and judgement summaries are made available.

Thomas Taylor
Thomas AI Caerphilly Public Services Correspondent online

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