A BRIT gamer watched in horror as his online friend was stabbed to death by a stranger in her home in Finland, according to police.

The unidentified man had been playing online with his friend, a 32-year-old Finnish woman, for about ten hours when he heard a window being smashed in.

The helpless Brit desperately asked the woman if she had locked her door – and later heard the murderer speak to the victim in Finnish, he told police.

Neighbours in the southeastern Finnish town of Puumala reported hearing the woman scream, according to police docs seen by local media.

The Brit was powerless to intervene in the horror 1,000 miles away – but sent an email to the town’s police at 5am local time on April 23.

Officers found the woman dead in her living room the next day and launched and investigation.

They found that after the brutal stabbing, the killer drove around 30 miles north to the town of Juva, where he set fire to a barn.

A neighbour notice the blaze and rushed out to monitor it.

After ten minutes, he saw a chilling sight: the murderer walking out of the burning barn with his arms wide open.

Paramedics rushed to the scene and took him to hospital, but the man died of injuries he had suffered.

The man was unknown to police at the time of the incident, according to Criminal Inspector Marfa Raipela, who led the investigation.

She added that the night’s events were not being investigated as terrorism.

The probe revealed that the man had driven from his home in Imatra to Puumala the day before the murder, arriving shortly before 5pm.

Raipela said he did not go there to meet anyone.

He then drove his car to his victim’s house before killing her, the inspector said, though police haven’t established a motive for the bloody crime.

Cops said that they think he chose her home as it was accessible and was the only one with its lights on at the time of the killing.

The case has now been closed as the only suspect is dead.