An inmate at Wheatfield Prison died Thursday night after being stabbed in the head. Brendan Gahan, a man in his 40s from Tallaght, was found injured in his cell around 10 pm. He later succumbed to his injuries and was pronounced dead. Gardaí (Irish police) have arrested a man, also in his 40s, in connection with the death. The circumstances surrounding the stabbing are currently under investigation. This incident marks a serious security breach within the prison system and raises questions about safety protocols. Authorities have not released further details regarding the suspect or the motive behind the attack at this time.