Deyan Deyanov was released from a BRITISH psychiatric hospital before he went on to kill, it was claimed yesterday.

Deyan Valentinov Deyanov, a 28-year-old Bulgarian, asked the store owner in Tenerife for a large knife and was caught on security camera spreading his arms to demonstrate the size he required.

When asked what he needed it for he said "I'm going to kill someone", and drew a finger across his throat.

The shopkeeper, who said he recognised the man as a vagrant who slept in a derelict building nearby, refused his request and threw him out of the shop.

Within half an hour, Deyanov had entered another supermarket where he encountered Jennifer Mills-Westley, grabbed a knife from the shelf and cut off her head in a random attack.

He had confronted her earlier in the day forcing her to seek refuge in a social security office but he followed her into the shop. Locals said Deyanov had become increasingly aggressive in recent weeks after splitting up with his girlfriend.

Relatives of the Bulgarian said he had been detained in the UK while visiting an aunt here.

And they blamed British authorities for letting him out, after which he returned to living in Tenerife.

A cousin told The Sun the drug-using killer had come to see relatives here just before Christmas.

The cousin, who lives in England, said: "His dad in Bulgaria has washed his hands of him so he came here.

"The family had problems with him, he was asking for money and looked scruffy. He was talking nonsense and said he was the son of God and things from the Bible."

Deyanov's behaviour got worse and his worried aunt phoned police.

The cousin went on: "They sectioned him and took him to a psychiatric unit in Cheshire. They only kept him there for a month.

"I think the hospital should have kept him longer and treated him. If they hadn't released him this would not have happened."

Police and NHS officials in Cheshire refused to comment.

Comments posted on Facebook claimed Deyanov had only just been released from a "nut house" in Tenerife and "lost the plot".

Security officials in Tenerife said they had been powerless to kick him out because he was an EU citizen.