Darrell Lance Abbott (August 20, 1966 – December 8, 2004), also known as Dimebag Darrell and Diamond Darrell, was an American musician and songwriter who was a co-founder of Pantera alongside his late brother Vinnie Paul, and founder of Damageplan. He was considered to be one of the driving forces behind groove metal. Description above from the Wikipedia article Dimebag Darrell, licensed under CC-BY-SA, full list of contributors on Wikipedia.