BOSTON -- A 65-year-old man who killed a store clerk in 2009 while on parole for a similar crime in 1971 will spend the rest of his life in prison, a judge said Thursday.

Edward Corliss, 65, was found guilty of first-degree murder in Suffolk Superior Court on Tuesday in the December 2009 death of Surendra Dangol, 39. He was also found guilty of possession of firearm and armed robbery charges. He is not eligible for parole.

A native of Nepal, Dangol was a clerk at the Tedeschi’s Food Shop on Centre Street in Jamaica Plain when Corliss robbed and shot him. Dangol died the day after Christmas 2009. Prosecutors say Corliss staked out the store before entering.

Store surveillance of the robbery played at the trial showed Dangol complying with Corliss’ demands, placing all of his cash register’s money into a backpack Corliss provided. The video then shows Dangol stepping back with his hands above his head and Corliss shooting him once in the chest.

Dangol later died at Brigham and Women’s Hospital.

Before Corliss' sentencing, Dangol’s brother, Birendra, and wife, Kalpana, said they were relieved by the verdict.

“I’m happy with the decision that was made,” Birendra Dangol said through an interpreter. “Because of this, people will be safe from another murder … We’re really devastated about what happened to my brother, but we’re really happy we got justice.”

Dangol’s widow made a brief statement before leaving the witness stand in tears.

“I am happy I got justice,” she said. “I cannot say anything else.”

Surveillance video from outside the store showed Corliss leaving the scene in a white Plymouth Acclaim. Using a list of every vehicle matching that description registered in the greater Boston area, police found one that was registered to Corliss’ wife.

Investigators said Corliss’ wife drove him to and from the scene, and drove him to Revere Beach the next day to dump the gun, a .380-caliber semiautomatic handgun, in the ocean. The gun was later found in the sand at low tide.

Investigators said Corliss later tried to arrange to have his wife and other witnesses killed by offering a fellow inmate proceeds from a future armored car heist if he would assassinate them. He was indicted on four counts of witness intimidation for that plot, but the charges were later dropped after a judge said there wasn't enough evidence to support them.

Corliss’ wife later died of natural causes.

Corliss was paroled in 2006 after serving a life sentence for the 1971 slaying of a Salisbury store clerk.