Daniel Rafferty stabbed friend Andrew Aitken 14 times
A teenager has admitted stabbing a friend 14 time after he pushed his mother during a house-warming party.
Daniel Rafferty, 18, from Coatbridge, North Lanarkshire, admitted attempting to murder 26-year-old Andrew Aitken in the town in June last year.
The High Court in Glasgow heard how Rafferty stabbed Mr Aitken in the chest, stomach and arm after following to his home in the town.
Judge Lord McEwan deferred sentence on Rafferty until next month for reports.
Advocate depute Richard Freeman, prosecuting, said: "Mr Rafferty's mother Linda Gray was shouting at Andrew Aitken.
"In response Mr Aitken began swearing at her and placed his hand on her forehead and shoved her backwards."
The court heard that Rafferty then became involved in an angry exchange with Mr Aitken who knocked him to the ground and left.
Rafferty went after Mr Aitken and followed him to his home in the town where he stabbed him 14 times.
Mr Aitken was later taken to Monklands Hospital where he was found to have a collapsed lung.
Doctors said that his injuries were potentially life-threatening.