Troy Davis executed; supporters say 'too much doubt'

Thursday, September 22, 2011 | 12:01 p.m. CDT

JACKSON, Ga. — Strapped to a gurney in Georgia's death chamber, Troy Davis lifted his head and declared one last time that he did not kill police officer Mark MacPhail. Just a few feet away behind a glass window, MacPhail's son and brother watched in silence.