Carman Monaco Jr. was convicted of stalking. Clinical research into stalking behavior provides a glimpse into this person who was not ruled out as a Manorville suspect in 2004.
Based on what we know from news reports, Carman appears to have exhibited a rare (and most dangerous) form of stalking behavior called "Predatory Stalking". He was anonymously stalking a complete stranger and using threats of extreme violence to instill fear in his victims. He also led his victims to believe that he was "watching" them. His crime also included elements of paraphilia (aberrant sexuality) related to dismemberment and torture (sexual sadism and masochism).
As you'll see from the research I've linked to, this rare type of criminal is very likely to have a severe personality disorder with a high propensity for violence, likely brought on by genetic predisposition and early life trauma. As we know, Carman's father died in June when Carman was only 23 years old. He is buried near Manorville.
Most stalkers have a prior relationship with (and are known by) the victim (former spouse, co-worker, etc.). Another type of stalker exhibits something called "Erotomania", which is the belief that someone of a higher social status is secretly in love with you. Based on news reports, Carman Monaco Jr. does not appear to fall into these two particular categories of stalker.
There are other categories of stalkers (resentful, incompetent), but again the descriptions of these typologies are not in line with the elements of Carman's reported stalking behavior. These "stalker types" can also be "comorbid", meaning that someone can be (and exhibit behaviors of) more than one type of stalker.
Note that a "predatory stalker" may exhibit sexually deviant behavior related to "paraphilic asphyxia", which means that they are sexually gratified by strangulation and asphyxiation, which was the cause of death for some of the victims in the LI Serial Killer case.
I'll try to summarize some of my research, but you should definitely read up on this topic.
http://apt.rcpsych.org/content/7/5/335.full
...High rates of personality disorders have been found in studies of stalkers ( Meloy & Gothard, 1995 ; Harmon et al1998 ; Mullen et al1999 ). Paranoid, dependent, narcissistic and antisocial personality disorders appear to predominate....
...The predatory stalker...The stalking is surreptitious so as not to alarm the victim, although some predatory stalkers take pleasure in raising the victim's anxiety by actions that let the target know he or she is being watched without revealing the identify or whereabouts of the stalker....
...Predatory stalkers should almost always be managed within a sex-offender programme, with the main focus being on the management of the paraphilia that is the driving force behind the stalking behaviour....
http://homepage.psy.utexas.edu/homepage/Group/BussLAB/stalkinghelp/StalkingWhyAm.html#Resentful
Predatory Stalker
Motivation
(a) Stalks his victim as part of a plan to attack her, usually sexually.
(b) Is motivated by the promise of sexual gratification and power over his victim.
Personality
(a) Often has poor self-esteem and is sexually deviant.
(b) Often has poor social skills, especially in romantic relationships.
(c) May have lower than normal intelligence.
Victim Characteristics
(a) May stalk someone he knows or a complete stranger.
Stalking Behaviors
(a) Usually does not harass or try to contact his victim while he is stalking her. He is unlikely to provide any kind of his plan to attack the victim.
(b) May engage in behaviors such as:
- Surveillance of the victim
- Obscene phone calls
- Exhibitionism
- Fetishism
- Voyeurism (Peeping Tom)
- Paedophilia/hebephilia
- Sexual masochism and sadism
- Paraphilic asphyxia
Duration and Criminality
(a) May stalk for a shorter period of time than other types of stalkers.
(b) Is more likely to have prior criminal convictions, most often sexual, than other types of stalkers.
(c) Has a high potential to commit sexual assault.
http://bjp.rcpsych.org/content/176/3/206.full
...Most authors agree on the importance of the distinction between stalking in the context of (some sort of) prior relationship and stalking where there has not been a real relationship at all; but they differ in the details of subdivision....
...Much more common is the scenario in which stalker and stalkee had some sort of real prior relationship: they were often prior acquaintances or intimates...
...Tjaden & Thoenness (1997) found that stalkers' most common motivation was the desire to maintain control over their victims....
...For example, Kienlen (1998) found that a large proportion of stalkers had experienced significant discontinuity in their childhood (e.g. loss of a carer) and that many incidences of stalking immediately follow object loss....
...Stalking is predominantly associated with cluster B personality pathology (narcissistic and borderline personality disorders) and to a lesser extent with dependent, schizoid, and paranoid features...
...interventions often appear to incense the stalkers and stimulate them to even more malicious and intense persecutory behaviour....
...Stalkers are most likely to be found among the diagnostic classes of psychotic disorders or (severe) personality disorders....
http://ajp.psychiatryonline.org/article.aspx?Volume=156&page=1244&journalID=13
...Compared with the states public mental health patients, stalkers are more than twice as likely to have a previous conviction for violence and also more likely to have comorbid substance abuse disorder (25% versus 15%) (25)...
...The overall risk presented by intimacy-seeking stalkers is low, but, in our experience, those with erotomania and morbid infatuations can, on occasion, be responsible for extreme violence (19)....
