It doesn't even take years.... months, weeks even. I'm not naive when it comes to drugs -- I've done my share. I think this kid went overboard with the acid, peyote, and weed and he couldn't handle it. Whatever mind he had, I think he wasted and developed an obsession with Giffords after meeting her and getting an unsatisfactory answer about some ridiculous minutiae his neurotic mind locked on to after months of drug use.