A Royal Marines dropout armed himself with combat knives and roamed the countryside hunting for people to kill before stabbing a walker to death, a court heard.
Moses Christensen, 22, is accused of murdering 70-year-old Richard Hall in a random savage attack on Brown Clee Hill, in South Shropshire on August 13 last year.
He repeatedly plunged a serrated double-bladed knife into the face, neck and chest of Mr Hall "just for the sake of it" after their paths crossed at the popular beauty spot, a court heard.
Christensen told police how he was overcome with a "strong desire" to kill the pensioner after they greeted each other with a smile as they met at the foggy summit, his trial has been told.
Read more on mirror.co.uk