Zdzisław Marchwicki (October 18, 1927 – April 29, 1977), known as The Zagłębie Vampire (), was an alleged Polish serial killer who, together with several accomplices, was convicted of killing 14 women and attacking 7 others around the country from 1964 to 1970. For this, Marchwicki was executed in 1977, but since then his guilt has been questioned. Background Zdzisław Marchwicki was born on October 18, 1927, in a dysfunctional family from Dąbrowa Górnicza. His father had married five times and four children from his marriages. Later on, all of his siblings – three brothers and a sister – would aid Zdzisław in his crimes. Due to his lack of interest in studying and average intelligence, Marchwicki failed to graduate school. Murders From 1964, a series of atrocious crimes took place on the territories of the Dąbrowa Basin and Upper Silesia, continuing (with short interruptions) until 1970. In total, 19 women were attacked, 14 of which were fatal. The Vampire's modus operandi consisted of stalking the chosen victim, running up and hitting them in the back of the head with a blunt object, then beating the victim until she died. In some cases, he had sexually abused the corpses, but never raped them, as no trace of his sperm was found in their bodies. Some of the women were left with exposed genitalia, with one having her pubic mound cut. On November 7, 1964, the body of 15-year-old Anna Mycek in Katowice's Dąbrówka Mała district. The autopsy established that she had been killed by blunt force trauma to the head, inflicted with a heavy object, and the offender had hit her several times post-mortem. He then dragged the body about ten meters away, unbuttoned her coat, lifted her skirts and exposed her genitals. Despite an investigation by the MoD, nobody was arrested. In the following months, several attacks on women were recorded: on January 20, 1965, Ewa Pakan was found dead in Czeladź, followed by the murder of Lidia Nowacka in Będzin on March 17 and the non-fatal attack on Irena Szymańska in the same city on May 14. Due to their similarities, the crimes were connected as serial in nature, and since the killer attacked in the vicinity of the Dąbrowa Basin, which is also known as the Zagłębie Dąbrowskie, he was nicknamed "The Zagłębie Vampire". However, since Polish operatives had not yet encountered such a vicious criminal, a