The partner of the accused is rarely called by the prosecution. But today – we hear evidence from David’s wife of more than 57 years. She’s asked about his relationship with the victim, Brian Low.

And she’s quizzed about the CCTV showing a bike similar to hers being ridden through Aberfeldy. Does she agree that the rider could be her husband?

Later in the episode we learn how David’s football allegiance could raise questions about the blue bag apparently being carried by the killer. And we hear from some expert witnesses who might be able to pin-point the time of death. Will this new evidence change the whole complexion of the case?

Inside Murder Trial is hosted by Jane MacSorley, with expert analysis from Tommy Ross KC. The series is a Firecrest Films production for BBC Scotland.

After yesterday’s revelations from the CCTV cameras, we follow more images which perhaps show someone on their way to commit the murder. But do any of the camera’s provide a clear shot of who that person is?

We also see footage of David Campbell apparently making gestures towards the police – on his own camera system.

Later – there is evidence which might explain why David’s wife’s bike has changed its appearance. And clues which could explain where David was hiding a gun. Or – they might present some innocent explanations. As we pass the half-way point, which way are the jury leaning. And which way do you think the trial will go?

Inside Murder Trial is hosted by Jane MacSorley, with expert analysis from Tommy Ross KC. The series is a Firecrest Films production for BBC Scotland.

It’s an emotional day in court as Brian’s loved ones recall the moment their world was shattered, as they first learned that Brian was dead. And then – that he had been murdered.

The discovery of a body is always a dramatic moment in court. This episode hears from the first on the scene – from neighbours, to paramedics, and police, as Brian Low is found deceased, with his labrador Millie loyally by his side.

We’ll hear how Brian’s death was initially thought not to be suspicious – perhaps stemming from a medical episode rather than foul play. And we’ll hear evidence around how long he may have been in the lane before he was found.

As the day continues – more attention is placed on the police response – and the eventual discovery that Brian had suffered gunshot wounds.

Inside Murder Trial is hosted by Jane MacSorley, with expert analysis from Tommy Ross KC. The series is a Firecrest Films production for BBC Scotland.

Having already heard about David Campbell’s temper, todays episode moves on to the relationship between him and the victim, Brian Low. The court hears that they were colleagues, who didn’t always see eye-to-eye.

And we hear evidence about an incident, more than a decade earlier, which might have cemented ill feeling between them.

Later in court – attention turns to an incident in 2023, just three months before the murder. A man is seen riding a bike, close to the location where Brian would later be killed. Some witnesses think he’s carrying a gun. And their evidence leads to a possible identification. Is this an early clue, or a red herring which might confuse the jury?

Inside Murder Trial is hosted by Jane MacSorley, with expert analysis from Tommy Ross KC. The series is a Firecrest Films production for BBC Scotland.

When Brian Low was murdered on a quiet country lane in Perthshire, it required an intense police investigation. He had been out walking his dog when he was apparently gunned down. But this isn’t a place where gun crime is common. Murder is almost unheard of. And Brian had few enemies.

Over the following months, detectives speak to hundreds of witnesses, take dozens of statements, and gradually piece together a case. Their suspect is an unlikely one, a 77-year-old former gamekeeper, who lives nearby.

Now – two years after the murder – a trial is set to begin at Glasgow High Court. 15 jurors are about to hear the evidence in the case. And they’ll decide if the accused is guilty, or not.

This episode begins by hearing the case outline, and the testimony of the first witnesses to take the stand.

Inside Murder Trial is hosted by Jane MacSorley, with expert analysis from Tommy Ross KC. The series is a Firecrest Films production for BBC Scotland.

A brand new season of Inside Murder Trial is coming soon.

After two weeks of evidence, the jury sit down for one last session. Each of the advocates reads a carefully curated closing speech - summarising all the key evidence and reminding the jury of the facts. But who will have the most compelling argument? Will any of the speeches sway jurors one way, or another? With nothing more to be said, the jury step away to deliberate in secret. When they return - the fate of the three accused will be revealed. Innocent, or guilty - do you think justice has been done?

Presented by: Jane MacSorley and Tommy Ross KC

A Firecrest Films Production for BBC Sounds

As the trial draws towards a conclusion, the jury are introduced to a science lesson. Can microscopic algae, found in the River Leven, help answer the question of whether any of the accused entered the water? The jury also hears from some police officers involved in the original enquiry, finding out why the accused weren't brought before a court at the time.

Presented by: Jane MacSorley and Tommy Ross KC

A Firecrest Films Production for BBC Sounds

After seven days of evidence for the prosecution, it's time for the defence to lead the evidence. And they start with testimony from one of the three accused. Can their account convince the jury of their innocence? Or will the cross-examination prove to be damning?

Presented by: Jane MacSorley and Tommy Ross KC

A Firecrest Films Production for BBC Sounds