CCTV footage of a 16-year-old girl allegedly killed by her uncle in a sexually-motivated murder shows her shopping with him the night before her death.

Louise Smith can be seen walking side-by-side with uncle Shane Mays at the Premier Store near her aunt's Havant home around 8pm on May 7.

The footage showed Louise buying alcohol with Mays - who denies murder but has admitted manslaughter - before she enters a Tesco alone and later returns to their one-bedroom flat.

Prosecutor James Newton-Price QC told Winchester Crown Court: "This is the last known CCTV footage of Louise."

By 12.49pm on May 8, Louise had vanished, with her body "burned and violated" and then dumped in woodland.

Louise Smith
Murdered teen Louise Smith was caught on CCTV with her alleged killer hours before her death

Winchester Crown Court heard Louise had been staying with her aunt CJ and Mays in the two weeks leading up to her death as she had been arguing with her mum.

The pair were spotted visiting the store and on May 8, hours after the CCTV footage, Mays allegedly lured Louise to Havant Thicket, a woodland.

While there, Mays allegedly smashed Louise's skull in with a log and later returned to the scene to "destroy" her body.

Louise Smith CCTV
The pair were spotted visiting the store hours before Louise was killed

Police didn't discover Louise's body until two weeks later, and her remains were "severely decomposed" with her jaw bone completely detached from her body.

Louise's remains are also understood to have been "burned" and "violated" in what police describe as an example of "breathtaking brutality."

Shane Mays
Uncle Shane Mays, rights, admits manslaughter but denies murdering the 'vulnerable' teen

The court was told after the killing, Mays allegedly went to his mum Karen Rawlinson's home and sipped on Coke while complaining of stomach pains.

In a statement to police, Ms Rawlinson said: "I was at home when Shane walked into the address. The front door was unlocked.

Louise Smith and Shane Mays
Louise Smith can be seen walking side-by-side with uncle Shane Mays at the Premier Store

"Shane was sweating and looked really hot. I remember that he arrived in the afternoon but I cannot recall what time. Shane did not tell me he was coming. He does not have a phone, I normally contact him through CJ.

"He told me he had the wrong clothes on for the weather and he had just walked Louise to Emsworth. I asked him why but he did not reply. He then had a glass of coke. He was leaning against the kitchen side."

The trial continues.