DNA test results show Albert DeSalvo "was the source of seminal fluid" found at the murder scene of Mary Sullivan in 1964, law-enforcement officials announced today.
Specifically, DNA specialists calculated the odds that a white male other than DeSalvo contributed the crime scene evidence at one in 220 billion. At the time Sullivan was killed, only about 3.2 billion human beings were alive on the planet, and only about 107 billion human beings have ever lived on the planet.
DA Dan Conley with Mary Sullivan's photo behind him.Updated with press-conference info.
Modern DNA techniques and dogged work by a detective who followed around a member of Albert DeSalvo's family last year have resulted in evidence that pretty conclusively ties DeSalvo to the last of the Boston Strangler murders in 1964, police and prosecutors announced today.
Still, just to be absolutely sure, prosecutors yesterday obtained a court order to exhume DeSalvo's body from a Peabody cemetery to optain samples with which to compare samples taken from the body and blanket of 19-year-old Mary Sullivan after her rape and murder in her Charles Street apartment, Suffolk County District Attorney Dan Conley said at a packed press conference this morning.
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