Claire, 54, was discovered dead by her family two days later as they mounted a search for the missing mum.
Harrison Lawrence Van-Pooss, 21, carried out a violent sexual attack on Claire Knights after ambushing her in Minnis Bay, Kent.
The vile monster caused Claire's family even more anguish during his sentencing after a letter he wrote was read to the court.
A "HIGHLY sexualised" killer who assaulted then beat a mum to death as she walked her dog on the beach has been jailed for life.
He claimed the talented artist had "not died in pain and suffering” - despite her horror injuries - causing her family to storm out.
