According to Wikipedia the most prolific serial killers (top 15) are:
Luis Alfredo Garavito from Columbia-138 proven kills.
Pedro Alonso Lopez from Columbia-110 proven kills.
Daniel Barbosa from Columbia-72 proven kills.
Pedro Rodrigues Filho from Brazil-71 proven kills.
Gary Leon Ridgeway from USA-71 proven kills.
Yang Xinhai from China-67 proven kills.
Andrei Chikatilo from Russia-53 proven kills.
Anatoly Onoprienko from Russia-52 proven kills.
Alexander Pichushkin from Russia-48 proven kills.
Ahmad Suragdji from Indonesia-42 proven kills.
Moses Sithole from South Africa-38 proven kills.
Serhiy Tkach from Russia-36 proven kills.
Gennady Mikhasevich from Russia-38 proven kills.
Ted Bundy from USA-35 proven kills.
John Wayne Gacy from USA-33 proven kills.
I found this list very interesting. It is a known fact the 86% of the world's serial killers are from America yet the top three are from Columbia with Russia coming in at a respectable second place. The most logical explaination for this is most likely due to the differences in police procedure and top-notch forensics. America may produce the majority of these types of killers but we also catch them much quicker, before they can kill hundreds of innocent victims.
The most famous serial killer to me is Mary Bell, because she started in her crimes at 10 years of age.
The serial killer was able to elude authorities for three years.
If you mean a serial killer this is a person who will kill more than 2 people at different intervals eg: Jeffrey Dhalmer or Ted Bundy. a serial killer has been known to kill up to 30 or 40 people within a couple of years.
Russell was born in April 1958 which makes him 54 years old in 2012.
I have not come with a book but in the related links box below I posted a link by tru tv with the serial killers.
The Phantom Killer is an unidentified serial killer. He is Texarkana's only serial killer and is credited with a number of attacks in Texarkana, Texas and Arkansas between February 22 and May 3, 1946.
Imprisoned Scottish serial killer Dennis Nilsen is 72 years old (birthdate: November 23, 1945).
Aileen Carol Wuornos was a leap year baby, born February 29, 1956.
Of all serial from Kentucky or from other states that committed crimes in Kentucky, non of them are black.
The FBI will not release it's data on crimes until the year is basically over. If there is a serial killer 'working' in New York state law enforcement will not speak much about open cases. There are available statistics on prior years though, Google FBI serial killers and you will find info on closed cases.
You can't expect the Gilgo Killer to answer your question here in wikianswers. We for sure don't know when. He has been killing sexual workers for 15 years. For sure, if he is not captured he will kill again.
According to Hickey's 1997 database of approximately 399 serial killers, the average age of the murderer at the time of the first killing was 27.5 years, and they typically were white males.