Detailed text transcripts for TV channel - KGO - 20110922:10:02:00
He's been on death row for two decades for a murder he says he did not commit. >> that is. >> that is. >> my name. >> my name. >> reporter: that wouldn't be unusual, except 7 of the 9 witnesses who helped convict him agree. all seven say he was not the man who gunned down off-duty police officer mark macphail. in 1989. six say police threatened them if they did not identify davis. supporters who note there was no physical evidence linking davis to the murder called for a last-minute reprieve. >> there's too much doubt for this execution to continue. >> reporter: those hopes dimmed tuesday when...