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Autores › Douglas Hagmann

Libros de Douglas Hagmann

Douglas J. Hagmann has been a licensed investigator in the private sector for the last 35 years. As a private detective, Hagmann has worked well over 8,000 cases and is recognized as a surveillance specialist. He has worked as an informational and operational asset for various federal and state law enforcement agencies. Hagmann is a certified forensic blood spatter analyst.He is the author of Stained By Blood, A Murder Investigation and his latest, In The Dark Of Night, Blood Of The Innocent.
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