Speaking with Ronni Hunter of Columbus, Ohio's 99.7 The Blitz radio station, Donegan said the first time the subject of depression and addiction really hit him was when Robin Williams died. The guitarist recalled that he used to think that suicide is very selfish, but when you look at someone like Robin Williams who seemed to have everything you want in life - family, money and success - it dawned on him that this is a disease.
So Donegan told Draiman that he wanted to do a song on Evolution
about depression and addiction, "We've all had either family friends or close people to us that have had their struggles, or continue to struggle," he explained. "I have my older brother that's had his struggles. He's on and off, and I know what a great guy he is, and I can hear it in his voice and see it in his eyes of feeling like he's let people down. I thought it was important for us to try to address the issue to let people know that it's nothing to be ashamed of. It's nothing to be embarrassed by. It's a disease, and you're not alone." (An autopsy revealed the Williams was suffering from a different disease: Lewy Body Dementia