Due to the fact that accurate records were not kept for black serial killers the earliest found was Sydney Jones who was hung on June 25, 1915. Jake Bird killed at least 44 women between the 1920's and 1947.
So many factors must be considered that it is impossible to get an accurate number of serial killers in a certain place and time. Serial killings may be mistaken as a regular murder; a body may never be discovered; they may think that the victim simply ran away or left.
"Wisconsin Murders: Insight Into the Minds of Serial Killers" by Jack Rosewood has 172 pages.
John List was convicted for killing his entire family. He shot his wife, mother and children. He placed their bodies in the living room. He turned on the ac to a low temperature so that the bodies would not stink. He then left town and was not seen for many many years. He was captured late in his life and admitted to all the killings.
Black serial killers are very rare. Most black multiple murders are classified as spree killers, or business related killers I.E rival drug dealers. Serial killers have very specific psycopathies. And blacks in the USA represent between 26&30 percent of the population and less then two percent of classified serial killers. Statistically speaking black serial killers are almost non-existent. It is true that 70-80% of people convicted of crimes in the united states are black. But one has to ask the question, is that a condition of poverty and urban life or psycopathy. In other words, is it their skin color, or their circumstance that drive them to commit their crimes. I'm inclined to think the later. Remember the statistic was based on those convicted of crimes.
They were German but recruited some local volunteers as additional killers. For example, 33,000 Lithuanians joined them to kill Jews and Communists in Lithuania and many of these were later used to carry out killings far beyond the borders of Lithuania.
It is difficult to determine an exact number of serial killers in Canada. However, according to statistics, there have been around 49 convicted serial killers in Canada since the 1920s. It is worth noting that this number is not comprehensive and may not include all unidentified or undetected cases.
There are many theories as to why serial killers appear
Russia's best known serial killer is probably Andrei Chikatilo, who was convicted of at 52 murders, but as with many serial killers the total may be much higher. Chikatilo was executed on February 14, 1994. Below is a link to a complete list of Russian serial killers.
Killers of the Dawn has 206 pages.
The Postcard Killers has 432 pages.
Manson was convicted of the Tate-LaBianca murders which occured on August 8 and 9, 1969. He also ordered the killing of music teacher Gary Hinman but I have never heard if charges were ever brought against him for Hinman's murder. Manson and his 'family' are suspected in many more killings but with many there is a lack of evidence, some there is a lack of a body. People that crossed Manson's path many times just disappeared.