A common trend in unresolved murders is found New algorithm emerging without anyone tried

ByAJC 1

There are many incidents in the murder case where the criminal does not get caught as it is treated as unresolved as it is. Mr. Thomas Hargrove is making an algorithm that casts a single stone to investigate the unresolved case and disclosing a free database. The algorithm built by Mr. Hayashi finds elements common to unresolved incidents and identifies other unresolved incidents with strong suspicion of the same criminal offense.

Serial Killers Should Fear This Algorithm - Bloomberg
https://www.bloomberg.com/news/features/2017-02-08/serial-killers-should-fear-this-algorithm

Mr. Her Grove majored in journalism at the University of Missouri and joined a newspaper company called E.W. Scripps after graduating from college. In college, I mainly learned statistical data analysis, and using this experience Scripps was handling analysis of statistical data in various fields such as politics and crime. Mr. Her Grove, a specialist in statistical data, encounters strange figures when investigating statistical data on crimes published by FBI. That means that while innovative technologies such as DNA type appraisal have appeared, the proportion of unresolved incidents that could not have been arrested for criminals is rising. The following graph shows the proportion of 'solved cases' among murder cases occurred in the US, but the proportion tends to decline basically from 1960, and in 2014 It is understood that it is reduced to about 60%.


Mr. Her Grove who was surprised by this fact, but one idea came to mind. It is "Is it possible to analyze the data published by the police and FBI and teach the computer how to discover the perpetrator?" Then Mr. Her Grove got a graduate student from the University of Missouri to help out, save the data of the murder case published by FBI and save it in statistical software. After that, it analyzed the data over a few months and constructed a unique algorithm that "identifies unresolved cases with strong suspicion of the same criminal from plural common points". After that, the developed algorithm was killed by 48 women in Seattle and a sentence of life sentence was sentencedGary RidgewayReverse engineering in a form that applies to the case of. By this, Mr. Her Grove found four characteristics "cluster", "sex of victim" "age group", "how to kill" in cluster analysis.

Mr. Her Grove's algorithm finds a common item from data of numerous murder cases and unresolved cases that occurred throughout the United States and identifies unresolved cases with strong suspicion of the same crime from that tendency. Mr. Her Grove received a bankruptcy of E.W. Scripps, a non-profit organization tackling an attempt to easily examine even the unfamiliar person the data of the murder case published by FBI collectivelyMurder Accountability Project(MAP) "in 2015. MAP summarizes the data of the murder case from 1980 to 2014 in detail, it seems that it can be said that it is the most perfect list in the database of murder cases in the United States.

ByRenegade 98

In the MAP database test conducted jointly with the staff in charge of the murder case at the FBI training department, the murder case of John Bene that occurred in 1996 was used as a model case. In the database, entering the place where the incident occurred "Colorado State", the killing method "strangling", the gender "female", the age of the victim "6 years old"Johnbene murder caseOnly hit in search. However, if the age of the victim was expanded to "5 to 10 years old", in addition to the case where Melanie Sturm of 10 age was strangled at Colorado Springs in 1985, 27 unresolved cases were listed about. In response to this result, Secretary Janet Olivier of FBI International Criminal Investigation Analysis who participated in the test praised, "All law enforcement agencies should be aware of the value of use of this database."

Atlanta police have been working with MAP to investigate unresolved murders. However, as budgets to investigate unresolved murders are small, it is not currently possible for other cities and states to receive cooperation requests. Mr. Her Grove said, "There will be many culprits in the United States that have not been arrested yet, there will be several criminals in at least one city."