Alabama executes Keith Edmund Gavin, who killed a man during a robbery in 1998
                                
                                
                                    (Newser) -
                                    A man convicted of fatally shooting a delivery driver during a robbery attempt in 1998 was executed by chemical injection Thursday in Alabama, reports the  AP . Keith Edmund Gavin, 64, was pronounced dead at 6:32pm at the William C. Holman Correctional Facility in southwest Alabama, authorities said. He was...