Speaking on research paper writing criminals, it appears these 'features' of characters may be hereditary. The following is an interesting article on that.
Summary of: Heredity in Criminality. Criminal Justice and Behavior, 2(3), 3-21
There are many issues that have to be taken into consideration when attempting to find a correlation between heredity and criminality. The studies in this article are not interested in Lombroso's "stigmata of degeneration" or finding the crime gene. Studies of twins and adoptions are as close as researchers have gotten to study the relationship between heredity and crime.

Many studies have been done on twins. This article combined the findings to show the concordance rates between monozygotic twins and dizygotic twins. It was found that the concordance rate was significantly higher for the monozygotic twins than the dizygotic twins. Possible reasons for the concordance rate between monozygotic twins is that the twins spend large amounts of time together and are very emotionally close. If one twin commits a crime it is possible that the other twin, in order to be similar will also commit the crime. Another reason may be that if one twin is incarcerated the other may have a hard time dealing with being alone and commit a crime to unconsciously be close to the other twin.
I think more was found when looking into adoption studies. These studies look into criminal parents and their children who they gave up for adoption. The researchers are interested in if the adopted children are more likely to have tendency toward criminal behavior then those who did not come from criminal parents. These studies are able to sift out environmental variables and focus on heredity.
Schulsinger looked into the national records of Denmark to collect the data of adopted children. He narrowed it down to 57 who had specific criteria for psychological disorders. He matched them with 57 controls and took into consideration, age, race, social class and neighborhood. The next step was to look into the personal history of the subject's biological and adoptive relatives. It was found that it was two and a half times more likely that the relatives of the subjects would have psychological disorders than the families of the control. No significance was found due to the very small sample size.
Huchings and Mednick (forthcoming) studied the same group as Schulsinger but looked specifically at the fathers of adoptees. The adoptees were matched with non-adopted controls. The adoptees had a higher crime rate than the non-adopted control. Very interesting results were found in this study. When looking at the fathers it was found that the results of criminal behavior were similar for adoptive fathers and non-adoptive fathers but when looking at the biological fathers they had a significantly higher crime rate. This leads you to believe that the biology is in fact important since the adoptees had a higher crime rate but their adoptive parents did not. It was also found that adoptive parents of children with criminal tendency have had a higher rate of crime than adoptive fathers of non-criminal adoptees. When looking at environment this lets you assume that sometimes environment can work either way; fathers with criminal pasts lead children into criminal behavior and vise versa.
Crowe instead of finding criminals who were given up for adoption looked into incarcerated females who gave away their children for adoption. These women had 52 children who were matched with similar controls. Eight of the 52 subjects were found to have
criminal records compared to two of the control group. Another interesting finding was that children of the criminals were significantly more likely to have traffic violations than the control group. It was also found that there were a few cases where the children committed very similar crimes to that of their criminal parents.
Some issues arise when dealing with heredity and crime but many of these are no longer valid if the environment is totally taken out of the situation as seen in the adoption studies. When looking into heredity and its effects on crime other factors that can be pasted on through heredity must be taken into consideration. Some of these factors are IQ, brain abnormalities and temperament.
ReferenceRosenthal, D. Heredity in Criminality. Criminal Justice and Behavior, 2(3), 3-21. Doi:10.1177/009385487500200101