Aaron Brady claims witness is 'lying psychopath' after denying Garda Adrian Donohoe's murder

The man accused of murdering Detective Garda Adrian Donohoe has described a prosecution witness as a "lying psychopath" and denied any involvement in the robbery that led to the garda being shot dead.

Aaron Brady, who denies charges of murder and robbery, said prosecution witness Daniel Cahill assaulted him on St Patrick's Day 2015 by headbutting him repeatedly and threatening to cut his toes off with a stanley blade over a false allegation that Mr Brady had a threesome with a girlfriend of one of Mr Cahill's friends.