A killer suspected of an Albany woman's slaying in 1970 was executed Thursday in Georgia for the rape and slayings of three other women decades ago.

Carlton Gary, who was known as the "stocking strangler" for the Georgia killings, was put to death by injection of compounded pentobarbital, a barbiturate, at the state prison in Jackson. He was the first inmate executed by Georgia this year.

Gary was charged with the 1970 killing of 84-year-old Nellie Farmer at the Wellington Hotel in Albany. He later pleaded guilty to a lesser charge and agreed to testify against a co-defendant who was later acquitted of the killing.

Gary escaped from a New York state prison and fled to Georgia where he carried out the series of killings that led to his execution.

Strapped to a gurney with his eyes closed on Thursday, Gary didn't respond when Warden Eric Sellers asked if he wished to make a final statement or have a prayer recited. The warden exited the execution chamber at 10:17 p.m. Records from past executions show the lethal drug generally starts flowing within a couple of minutes of the warden exiting.

Gary took several quick breaths within a few of minutes of the warden exiting and then yawned before becoming still. He died at 10:33 p.m., Sellers told witnesses.

Gary was convicted in 1986 in Georgia on three counts each of malice murder, rape and burglary for the 1977 deaths of 89-year-old Florence Scheible, 69-year-old Martha Thurmond and 74-year-old Kathleen Woodruff.

Though charged only in those deaths, prosecutors say Gary attacked nine elderly women in the west Georgia city of Columbus from September 1977 to April 1978. Most were choked with stockings, and seven of them died.

Gary had been linked by Albany police to the 1970 strangling murder of Nellie Farmer in her rented room at the Wellington Hotel.

Though initially charged with that Albany slaying, the murder charge was dropped after Gary agreed to plead guilty to robbing Farmer and to testify against another man who was also arrested for the Farmer murder, John Lee Mitchell.

Mitchell maintained his innocence and was acquitted of the murder in a 1971 jury trial in Albany, and Gary was sentenced to serve 10 years in New York state prisons. After escaping from prison in New York, Gary surfaced in Georgia.

Police arrested Gary six years after the last killing, in May 1984. He became a suspect when a gun stolen during a 1977 burglary in the upscale neighborhood where all but one of the victims lived was traced to him.

At trial, prosecutors introduced evidence from all nine attacks, arguing that common factors established a pattern. The victims were all older white women who lived alone and were sexually assaulted and choked, usually with stockings. They were attacked at home, usually in the evening, by someone who forced his way inside. All but one of the Georgia victims lived in the Wynnton neighborhood, and all lived near where Gary lived at the time of the crimes.

Prosecutors also presented evidence that they said connected Gary to similar crimes in New York state.

In a clemency petition and in filings before state and federal courts, Gary's lawyers had argued that evidence not available to his trial attorney — either because the necessary testing didn't exist yet or because it wasn't disclosed by the state — proved he wasn't the "stocking strangler."

The state countered in court filings that the evidence Gary's lawyers cited had already been considered by the courts and that his convictions and sentence had repeatedly been upheld by state and federal courts over the past three decades.

The State Board of Pardons and Paroles, the only authority in Georgia with the power to commute a death sentence, declined Wednesday to spare his life after holding a closed-door hearing to listen to arguments for and against clemency.

Appeals filed by Gary's attorneys with state and federal courts were also rejected.