Albert DeSalvo F. Conley said he expected investigators to find an exact match when the evidence is compared with his DNA. On July 19, 2013, Suffolk County DA Daniel F. Conley, Mass. Attorney General Martha Coakley and Boston Police Commissioner Edward F. Davis announced that DNA test results proved DeSalvo was the source of seminal fluid recovered at the scene of Sullivan's 1964 murder. Though DeSalvo was conclusively linked to Mary Sullivan's murder, doubts remain as to whether he committed all of the Boston Strangler homicides — and whether another killer could still be at large. When he confessed, people who knew
Vladimir Tretyakov (serial killer) Vladimir Tretyakov (serial killer) Vladimir Nikolaevich Tretyakov (born 1953 in Arkhangelsk, RSFSR - August 19, 1979), known as the "Arkhangelsk Butcher", was a Soviet-Russian serial killer who killed seven women in his hometown between 1977 and 1978. Tretyakov was born in 1953. His father left the family before his birth, and Vladimir grew up with his alcoholic mother, who often beat him. His grandmother managed to get him up to a general education, leaving to study in Tashkent. Since then he has hated drinking women. After school, Vladimir joined the army, then graduated from a vocational school. For several years