KIGALI, Rwanda—The man who inspired the film “Hotel Rwanda” for saving hundreds of his countrymen from genocide was convicted of terrorism offenses Monday and sentenced to 25 years at a trial that human rights watchdogs and other critics of Rwanda’s repressive government have described as an act of retaliation. Paul Rusesabagina, credited with sheltering ethnic Tutsis during Rwanda’s 1994 genocide and a recipient of the U.S. Presidential Medal of Freedom, boycotted the announcement of the verdict after calling the trial a “sham.” The U.S. resident and Belgian citizen was convicted on eight charges including membership in a terrorist group, murder, and abduction. He was charged along with 20 other people. The circumstances surrounding Rusesabagina’s arrest last year, his limited access to an independent legal team and his reported worsening health have drawn international concern for the 67-year-old who left Rwanda in 1996. Rusesabagina, who remains in custody, has asserted that …