Back in the Eighties and Nineties, Pantera was the band for metal fans who felt Metallica didn't rock quite hard enough. The thrash metal band had a devoted following all through the Eighties, but the release of Cowboys From Hell brought them to a huge audience, which only grew two years later when they dropped Vulgar Display of Power. Long-simmering tensions between frontman Phil Anselmo and guitarist Dimebag Darrell reached a boiling point in 2003 and the band split up. The next year, Dimebag was touring with his new band, Damageplan (also featuring his brother and Pantera drummer Vinnie Paul), when a deranged fan killed him onstage in Columbus, Ohio. No clear motive for the murder has ever surfaced, but the tragedy forever ruled out the possibility of a Pantera reunion.