"There's a man out there with a gun," she gabbled frantically to the householder.
She was taken inside - and the bizarre story of the "lovers' lane shooting" began to unravel.
The 17-year-old had travelled to the remote spot near Woodsetts with friends Carolyn Lemm, Lee Smith and Adam Briggs after being told £4,000 was buried there.
It was to be Smith and Carolyn's final journey.
The hidden money never existed. Smith had created the story to lure Carolyn - his former girlfriend - to her death because he couldn't face life without her.
Carolyn, a former pupil at Firth Park Community Arts College, had known Smith for a relatively short time.
She was a popular and well-known teenager who had worked in The Yew Tree pub in Malin Bridge and at takeaways in Hillsborough and in Rotherham.
But she moved to Lincolnshire briefly after falling in love with Smith.
The relationship lasted only a short time and Carolyn returned to Sheffield - a move that fuelled a rage inside Smith that would eventually lead to her death.
Moments after arriving at the field in Woodsetts, Smith marched Sabrina and Carolyn at gunpoint into the field and ordered them to drop their mobile phones.
Then Sabrina ran.
She scrambled for nearly a mile through fields as two blasts from a double barrelled shotgun shattered the quiet December night.
Former Sheffield Master Cutler John Bramah, aged 57, told of the night he opened his door to find the teenager crying and hysterical.
"I saw a girl who looked confused, agitated and very frightened. It was hard to tell what she was saying, she was speaking quickly, but she said there was a man with a gun."
Less than a mile away a police helicopter's heat-seeking device spotted two bodies lying side-by-side.
The two shots which blasted out as Sabrina ran were Smith's final actions. He shot Carolyn in the head and turned the gun on himself.