23 January 2012 Last updated at 07:52 ET

Mark Mathieson jailed over samurai sword chase

A teenager whose brother was stabbed to death has been jailed for chasing a man with a samurai sword - hours before his mother led a march against knife crime.

Mark Mathieson admitted brandishing the weapon and acting in a threatening manner towards Andrew Jack in Glasgow's east end on 20 August last year.

At the city's Sheriff Court, the 19-year-old was jailed for 17 months.

In June last year, Darren Smith, 20, was jailed for 19 years for murdering Mathieson's 22-year-old brother George.

The court previously heard that Mr Jack and a friend had been walking a dog before visiting a takeaway restaurant in the city's Forge Retail Park.

Mr Jack was approached by Mathieson, who he knew, and challenged to a fight.

Mathieson walked off, but was encouraged to go back after Mr Jack.

The court was told that Mathieson's companion handed him the samurai sword, which he then used to chase Mr Jack.

The incident happened the night before his mother, Michelle, held an anti-knife march calling for tougher sentences for those who carry weapons.

Mathieson had been with his 22-year-old brother George when he was stabbed through the heart during an attack in Cambuslang, South Lanarkshire, last year.