A driver who caused the tragic deaths of a young Pembrokeshire couple aged in their 20s, due to careless driving has been sentenced to a 16 month prison term, suspended for 12 months, at Swansea Crown Court.

Alexander MacCallum, aged 28, of Beach Road, Llanreath in Pembroke Dock, was also banned from driving for 18 months at the hearing which took place on Thursday, April 2.

He previously admitted to two counts of causing death by careless driving at the same court on February 9 this year.

The conviction relates to an incident at 3.50pm on June 13, 2024, when a two-vehicle road traffic collision took place on the A477 near to Llanddowror.

A Jaguar XK R vehicle, driven by MacCallum, lost control in wet conditions before crossing the carriageway and colliding with a Ford Fiesta driven by 27-year-old Adam Muskett of Tenby, with his partner Katie Worrell of Pembroke, aged 25, as a passenger.

Adam tragically died at the scene, and Katie was taken to hospital with catastrophic injuries where she sadly died later the same day.

During the sentencing hearing, the prosecution said a witness described MacCallum's Jaguar as being "all over the place" before the crash.

The court heard another witness, a driver who was heading westbound, recalled a “loud engined” Jaguar overtaking him and moments later encountered debris on the road and a Jaguar “at rest” in the carriageway.

Both the families of Adam and Katie have issued the following statement: “We would like to thank the emergency services who attended that fateful day and the people who stopped to help Katie and Adam, we are forever grateful to them.

“We recognise the sentence of the court, but there is no sentence that will ever bring our children and siblings back. We appreciate the work of Dyfed-Powys Police and the Crown Prosecution Service to secure a conviction.

“Adam and Katie’s deaths were unnecessary, had the defendant not driven his car in the manner that he did they would still be with us.

“We now wish for privacy after what has been a long and difficult journey to the conclusion of this prosecution.

“We urge everyone to consider the manner and speed in which they drive their vehicles,” they added.

PC Lucy Brookes, from the Serious Collision Investigation Unit, said: “Following the tragic deaths of Adam and Katie, a full investigation into the collision was launched, and after consideration of the evidence it was deemed that MacCallum’s manner of driving was inappropriate for the very poor weather conditions.

“He was charged through a postal requisition in November 2025, and has now been sentenced.

“This has been a lengthy investigation into an incident which claimed the lives of two young people.

“While nothing can undo the loss of Adam and Katie, it is hoped that today’s sentence goes some way to providing justice for their loved ones, who have shown incredible strength throughout this process. Our thoughts very much remain with them.”