Former UTV broadcaster Lynda Bryan chats to activist whose son was fatally knifed at a party two years ago

Martin Crosser, and inset, the son he lost two years ago, Charlie
A father from England whose teenage son was stabbed to death two years ago is bringing his anti-knife campaign to Northern Ireland.
Martin Crosser has been calling for action to tackle the scourge ever since his 17-year-old son Charlie was killed at a party.