Although he is believed to have murdered an eighth victim (which he confessed to), it was never proven as the body was never found.
Modzelewski murdered women between the ages of 18 and 87 by strangling them with a scarf or with his bare hands.
The lower part of the victims' bodies were nude and the arrangement of the corpse suggested a penetration of genital organs.
Despite the thoroughness of the investigation, the perpetrator was not found as the police were led astray from the beginning.
As a result, the perpetrator was not found and the local people continued to live in fear.