Teenager 'stabbed his grandmother to death and seriously injured his grandfather as they lay in bed after taking legal high'

• Hull Crown Court heard Lewis Dale, 17, killed Irene dale, 78, with knife
• He also seriously injured her husband Allan, 80, while he slept, it was said
• Dale was a user of the drug mephedrone - known as 'meow meow or M-Cat'

By DAILY MAIL REPORTER

PUBLISHED: 12:11 GMT, 11 December 2013 | UPDATED: 12:55 GMT, 11 December 2013

A teenager who stabbed his grandmother to death and seriously injured his grandfather as they lay in bed was suffering a psychotic episode while taking former 'legal high' M-Cat, a court heard today. 

Hull Crown Court was told there was no dispute that Lewis Dale, 17, killed Irene Dale, 78, and seriously injured her husband Allan, 80, with a kitchen knife as they lay asleep. 

Adrian Strong, prosecuting, described how Dale attacked his grandparents as they were in bed at their home in Hull, in April.

Mr Strong said Dale was a user of the drug mephedrone which he said was also known as 'meow meow or M-Cat'.

He said: 'I anticipate that Lewis Dale will tell you that at the time of the attack on his grandparents he was suffering a psychotic episode as a result of his drug use.'

Mr Strong said mephedrone used to be called a 'legal high' but was outlawed in 2010 and is now a class B controlled drug.

He said users claim it provokes euphoria and heightened energy.

But he said there were also reports it caused restlessness, anxiety, confusion and psychosis.

Mr Strong said Mr and Mrs Dale had gone to bed at about 10.30pm on Friday April 26.

They had been married for 50 years and had lived in the house where Mrs Dale died for 40 years, the jury was told.

Dale, who denies murder and attempted murder, was living with his grandparents at the time of the attack.

Mr Strong said Dale went into his grandparents' bedroom shortly after Allan Dale had got up to use the bathroom at around 2am and had got back into his bed next to his wife.

FULL STORY: http://www.dailymail.co.uk/news/article-2521885/Teenager-stabbed-gr...