Blood-stained trainers belonging to killer Keith Prest were found dumped in a recycling bin at Wincheap.

Prest, 49, was also spotted on CCTV walking round Canterbury city centre.

He has been found guilty of stabbing his former partner to death in a prison car park.

Unemployed and of no fixed address, he had denied murdering Louise Evans in September, 2007.

The 48-year-old teacher was knifed 43 times during the frenzied attack outside East Sutton Park open prison in Maidstone.

Prest has been jailed for life. He will serve a minimum of 16 years.

During his trial Alan Kent, prosecuting, told Maidstone Crown Court Miss Evans' body was not found for an hour.

He said Prest headed for Canterbury but stopped at the Moto services on the M2, possibly to change his clothes and dispose of the knife.

His trainers were found in a recycling bin at Wincheap. They had both his and Miss Evans' blood on them.

Prest was also seen on CCTV walking round Canterbury in different clothes to the ones he had been wearing earlier in the day, although police do not believe he had any connections with the city.

Miss Evans, a mother-of-two, taught English to foreign inmates at the prison and had just finished a day's work when she was killed.

The three-times married Miss Evans, from Hothfield, near Ashford, met Prest in September, 2005, through text dating.

Within two weeks they were living together, but the relationship was soon beset by violence and Prest became "controlling and obsessive". The couple split in the summer of last year.

The jury heard in the days leading up to the killing, Prest made numerous phone calls to Miss Evans and left notes on her car and at her home.

At the time of the murder he was on bail, having been accused of assaulting her.

He did not give evidence during the trial.