Six Feet Under, Decrepit Birth, Cannabis Corpse + Dealey Plaza – 2013 Must-See Metal ConcertsSix Feet Under, Decrepit Birth, Cannabis Corpse + Dealey Plaza – 2013 Must-See Metal ConcertsWho: Six Feet Under, Decrepit Birth, Cannabis Corpse + Dealey PlazaGraham HartmannGraham Hartmann