Andrew Daly / Latest from Guitar World: "The last text I got from Oz said, 'Zakky, sorry, it was like a madhouse back there. I didn't see you. Thanks for everything'": Zakk Wylde looks back on his closer-than-close relationship with Ozzy Osbourne, and their final moments together onstage - Wylde was the Black Sabbath icon's guitarist and friend for decades.