Norwegian police on Friday recommended reopening an investigation into a ferry fire in 1990 that killed 159 people after a police review cast doubt on findings that a Danish man who died on board had started the blaze. Survivors and relatives of passengers who died on the Scandinavian Star have long campaigned for the case to be reopened, because of doubts that a single passenger could have started all the fires that broke out in several parts of the vessel as it headed from Norway to Denmark. Last year, with Norway's 25-year statute of limitations for murder cases looming, police agreed to review their work on the case. "When 159 people are killed in a fire that was probably started deliberately…