I am fictionalizing the 1926 prohibition-era murder of a prominent citizen. I intend to add a fictional character or two in order to spin the story to make it an interesting read rather than an historical accounting of the research. This murder involved a conspiracy of law enforcement, thugs, politicians, bootleggers, pimps, and prostitutes, and other incompetent and unsavory, or greedy characters . Names, dates, and times are extremely well documented. The victim was felled with one-shot to the head from about 100 yards at night. Although several men were tried and convicted, controversy over who actually shot the gun that killed the victim was never resolved. Is it alright for me as a novelist, to use the facts, including the names of those involved according to newspaper articles, court records, and a factually-correct full-length book published by a university press and still available on Amazon? If you decide to comment, please tell me whether it is your opinion, or you speaking from either some personal or legal experience. Thank you in advance for any insight you might provide.