A father who was mistakenly told his son had survived a car crash has told an inquest it felt like his family had been through "two deaths".

Joshua Johnson, 18, and Summer Louise Scott, 17, died when a Toyota Corolla left the road near Rotherham, South Yorkshire, and hit a tree on 13 December.

Police initially misidentified the front seat passenger Trevor Wynn, then 17, as the male who had died in the crash, with the mistake becoming clear when Trevor came out of sedation three weeks later.

The hearing at Doncaster Coroner's Court was told the Johnson family had sat at the bedside of seriously injured Trevor, not realising their son was dead.

A statement from Joshua's father, Lee Johnson, was read in court on Monday, where a coroner ruled his son was unlawfully killed.

Johnson explained how he and his wife had spent weeks at Sheffield's Royal Hallamshire Hospital only to be told there had been an error.

"This information came as a huge shock and I cannot comprehend it," he said.

"It felt like, as a family, we had two deaths.

"I felt I had missed out on the initial grieving part of the process."

The collision happened on Todwick Road, between Dinnington and Todwick, in the early hours of the morning.

Senior coroner Nicola Mundy read the statement of Det Ch Insp Andy Knowles, of South Yorkshire Police, who told the court how the mistake started.

A number of personal items, including Joshua's driving licence and Trevor's bank card, were found at the scene but not physically on either of the young men.

Knowles told the court earlier this year how an officer used this information to trace Trevor's mother, who provided a college ID card as well as a description of his build and footwear.

The officer said: "That officer then took this ID card to Rotherham Mortuary where, at that time, the deceased victim of the collision was booked in as an unknown male.

"Upon considering the comparison between the male's features against the ID and also considering the descriptive details of build and clothing, the officer was satisfied that this was the body of Trevor Wynn."

He added a second officer, with the surviving teenager, was told this person was Joshua by colleagues at the crash site and had obtained a photograph from his driving licence.

The officer explained the true identity of the deceased male was achieved using dental records.

On Monday, separate inquests were held into the deaths of Joshua and Summer.

Mundy heard how Summer had been driving the Toyota and lost control as she approached a slight bend.

The car went across a verge and hit a low wall, which caused it to roll in the air before it struck a tree.

According to police investigators, a tracking app on one of the phones in the car determined it was travelling at 95mph for about a kilometre before the crash.

Before the bend it had slowed to 86mph, but forensic collision investigator Peter Gallagher said tests showed the maximum speed at which the bend could be safety negotiated was 68mph.

The inquest heard Summer had a provisional driving licence but had not passed her driving test.

Summer's family described her as "loving, caring and very funny" but also "fierce and sassy" with a long-standing love of cars.

Joshua's family described him a "gentle giant" with a "massive heart" who had a "bright future ahead that was tragically cut short".

The coroner concluded that Summer died as a result of a road traffic collision and Joshua was unlawfully killed.

A spokesman for the Independent Office for Police Conduct (IOPC) said its investigation into the mistake was "at an advanced stage" and they hoped it would conclude "in the coming weeks".

Colin McFarlane, South Yorkshire's Assistant Chief Constable, said: "We recognise the shock and significant distress caused by the misidentification following the collision on Todwick Road and the unimaginable consequences this had for the families involved.

"Only those involved can truly understand."

He said the force took immediate steps to review processes and will look at the IOPC findings following the conclusion of the investigation.

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