Two of the six men arrested in connection with the hacking group are known as pwnsauce s and Palladium They were arrested in 2011 for an attack on the website of the Irish political party that yielded contact details of 2,000 subscribers. One of the men was a member of the U.S. National University of Ireland, where he was arrested in January. He is believed to have been involved in the attack on U.N. computers.
Source: https://threatpost.com/behind-mask-accused-lulzsec-members-left-trail-clues-online-031012/76313/