An 81-year-old Florida man is going to prison – most likely for the rest of his life – for the murder of 86-year-old Leo Corriveau of Presque Isle, Maine.

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Robert Craig was found guilty in July by a jury in Aroostook County Superior Court in Caribou. During the trial, the court heard that on July 12, 2016 the two men got into a heated argument over money for a bus ticket for Craig to return to Florida.

Prosecutors said Craig strangled Corriveau and left his body in the yard outside Corriveau's home in Presque Isle. The defense admitted during the trial that Craig did in fact kill Corriveau but that it was in self-defense.

Superior Court Justice Harold Stewart II on Tuesday sentenced Craig to 33 years in prison. No appeal is expected.