Elliot Rodger, who was 22-years-old when he killed six students near the University of California, Santa Barbara in 2014, is the first 'alt-right killer' in recent years, according to a new report.

The report by the Southern Poverty Law Center counts 13 'alt-right' killers that have left 43 dead and more than 60 injured since 2014.

According to the report, all 13 of the alleged perpetrators shared a common thread, they all participated in the 'far-right ecosystem that defines the alt-right.'

Kelly Hoover, public information officer for the Santa Barbara County Sheriff's Office, told the Sacramento Bee that while she she had not read the report she noted that investigators were aware of Rodger's interest in Nazi figures.

Elliot Rodger was 22-years-old when he killed six students at University of California Santa Barbara in May of 2014. A new report out says he is the first 'alt-right killer' in recent years

Dylann Roof (pictured) was 20-years-old, in June of 2017 when he killed nine members of a black bible study group in South Carolina. The report lists him among the alleged 'alt-right killers'

Christopher Harper Mercer, 26, killed nine people in Roseburg, Oregon in Oct, 2015. Authorities believe Harper-Mercer, was motivated by white supremacist ideas. The Government Accountability Office categorized the Roseburg killings as 'white supremacist' motivated murders

Alexandre Bissonnette, 27, allegedly walked into the Quebec Islamic Cultural Center in February of 2017 during evening prayers and allegedly fired indiscriminately into the crowd of men, women and children. Six men were killed in the deadly attack

'That's something that did come out as part of the investigation,' Hoover said.

A 2015 report by the sheriff's office revealed Rodger's research of Nazis, including some of the main architects of the Holocaust. The report does not mention the alt-right.

'Upon review of the suspect's internet search history, investigators have learned that the suspect was very interested in some of the practices and techniques of the Third Reich,' the sheriff's report said.

'The suspect's in-depth research included information about Joseph Goebbels and Heinrich Himmler, two infamous members of the Nazi hierarchy,' the sheriff's report continued.

The report by the Southern Poverty Law Center lists 13 people on its list of what they call 'alt-right killers'

William Edward Atchison, 21, who killed two students in a New Mexico high school on December 7 before taking his own life used the pseudonym of 'Elliot Rodger.'

He also called Rodger the 'supreme gentleman,' a nickname Rodger gave himself that became an alt-right meme, according to the report.

The report also lists Dylann Roof among the 'alt-right killers.' Roof, a white supremacist, was convicted of fatally shooting nine black members of a Bible study class in South Carolina in 2015 when he was 20-years-old.

All of the 13 people listed in the report are males under 30-years-old at the time of the alleged murders, and all were American with the exception of Alexandre Bissonnette, who is Canadian.

According to Poverty Law, some displayed a history of mental illness, but all were active in alt-right communities, either online or in real life.

'White supremacist groups, particularly those considered to be part of the alt-right, are becoming increasingly decentralized' the report says.

The internet has made it easier than ever for those with like minded alt-right tendencies to connect, and disperse information on events.

What once were groups with leaders and membership lists are now social networks organized around propaganda websites, the report says.

'The white nationalist movement's sprawling online presence which metastasized, drawing in more — and at times less stable — adherents. Now, they have moved into the streets,' according to the Law Center.

THE REST OF THE ALT-RIGHT KILLERS

James Alex Fields Jr., 20, was arrested in August, 2017 after ramming his car into a crowd of counter-protesters to an alt-right rally in Charlottesville, Virginia, killing Heather Heyer, 32

William Atchison, 21, the gunman who killed two students at a New Mexico high school in December of 2017, and then took his own life. Authorities say he used the pseudonym of 'Elliot Rodger' the first 'alt-right killer'

Jeremy Christian, 35 (left) was arrested in May of 2017 after allegedly fatally stabbing to men on a train in a racist attack and Samuel Lincoln Woodward, 20 (right) allegedly killed an Ivy league student Blaze Bernstein, who was gay and Jewish and was reported missing on January 2, 2018 Woodward was a committed neo-Nazi and member of Atomwaffen

Nicholas Giampa, is the youngest on the list. He was 17-years-old when he killed his girlfriend's parents in December of 2017, before turning the gun on himself. According to reports, the parents had facilitated the break-up after learning that Giampa held neo-Nazi beliefs. Giampa was known in the neighborhood as the person who mowed a swastika into a community field

James Harris Jackson , 28 (left) police say in March of 2017 traveled to New York City and fatally stabbed an African-American man in a racially motivated attack, Sean Christopher Urbanski, 22 (right) in May of 2017 was arrested in the stabbing death of a black second lieutenant in the Army, as police are investigating what they say was a racially motivated attack by Urbanski who was a member of alt-right groups