Victims Rulloffs first believed victims are said to be his wife's brother's wife and child. He slowly killed them by giving them poison. He killed them because he was a jealous man and did not like his wife talking to another man she knew (her brother). A few weeks later he killed his wife and his daughter (picture to right). Supposedly in the Rulloff home a fight between Rulloff and his wife, Harriet, broke out and he grabbed a pestle that he used to crush medicines and struck her in the head, killing her later that night suffering from a cracked skull. How or what he did with his daughter, Pricilla, is unknow but it is believed that he gave the her some medicine to stop it from crying. The next day Rulloff went to a friends house and barrowed a horse and buggy. according to witnesses he loaded up a chest and rode off. returning later to only grab some books and again took off with no word to anybody.
Later he also kills a store clerk, Frederick Merrick, and possibly his partners in crime, Billy Dexter and Albert Jarvis (to the left). He shots the store clerk in the head and drowns Dexter and Jarvis in the near by river where they are later found. Rulloffs association with Dexter was that of a so called associate. However Rulloffs association with Jarvis was a little bit different. Rulloff met Jarvis in jail. Jarvis was the son of the warden and Rulloff was Jarvis' teacher in ancient language even though he was a prisoner. Rulloff being a smooth talker talked Jarvis into a life of crime.
Suspect Rulloff is a jealous, book smart criminal. He struck his wife out of jealous rage of her kissing another man, her cousin. In prison he was a teacher to the wardens son and possible lover for the wardens wife as well. He deceived many people in how he would act as if he wasn't the master mind but in all reality he was in control of everything all the time.
Psychological Profile
Rulloff was never given an official psychological profile. However, if he was given one today he would classify as a psychopath and a sociopath. He would be said to have an antisocial personality disorder and an avoidant personality disorder. Rulloff would also be considered an erotophonophilia; a lust murder.