Attempted murder trial hears of 18-yr-old's post-nightclub row

An 18-year-old has gone on trial accused of stabbing another teenager seven times in a laneway off Grafton Street in Dublin last year.

Tadhg Costello, of Richmond Hill, Monkstown, is charged with the attempted murder of Josh Leahy from Ranelagh, at Johnson's Court in Dublin city on May 31, 2012.