Knife-obsessed criminology pupil, 20, is discovered responsible of stabbing private coach Amie Grey to demise on Bournemouth seaside after researching how one can get away with homicide and high-profile killings

A student has been found guilty of murdering personal trainer Amie Gray on Bournemouth beach. 

Nasen Saadi, 20, stabbed 34-year-old Ms Gray to death at Durley Chine Beach, West Undercliff Promenade, on May 24. He was also found guilty of the attempted murder of Leanne Miles at the same location.

The two women were attacked as they were enjoying a late-night chat next to a small fire to keep warm on the beach, Winchester Crown Court heard. 

The jury was shown footage of the fatal attack in which Saadi is seen ‘loitering’ around his two victims before walking on to the sand and attacking them, and he is seen running after one of the women in the prolonged incident. 

Saadi, who was studying criminology and criminal psychology at Greenwich University, admitted to staying in Bournemouth at the time of the attack but denied being the person shown on the CCTV.

He told police that he could not remember that period of time and said he might have ‘blacked out’, that his arrest had been a case of ‘mistaken identity’ and he had ‘no reason to attack someone for no reason’. 

Home Office pathologist Dr Basil Purdue told the court Ms Gray died as a result of 10 knife wounds in the incident in May, including one to the heart, while Ms Miles suffered 20 knife injuries. 

Nasen Saadi (pictured) has been found guilty of murdering personal trainer Amie Gray on Bournemouth beach

Amie Gray, 34, from Poole, was murdered at Durley Chine Beach, West Undercliff Promenade on May 24

Sian Gray (right) with her wife Amie Gray who died after being stabbed on Durley Chine Beach, Bournemouth at around 11.45pm on May 24

The trial heard that Saadi was interested in true crime, horror movies and knives which he bought on the internet and had called himself ‘Ninja killer’ for his username on Snapchat.

The court also heard that the defendant pleaded guilty to failing to provide his mobile phone pin code to police.