But journalists soon grew suspicious of Lucas with anomalies in the timelines given and DNA testing beginning to contradict his world-famous claims.
If believed, he has murdered more people than some of the most recognised serial killers in history. Up until his death in 2011, he had only been convicted of 11 murders.
The five-part series will examine how Lucas embraced his newfound 'celebrity' status and the questionable way in which the Texas Rangers Task Force handled the investigations.
In the trailer, he can be seen supping milkshakes while helping authorities to 'solve' the murders.
"He filled people’s needs, and in a way, he had never been happier than when he was with Boutwell and the Rangers," director Robert Kenner said.
"That was probably the happiest moment of his life. He was thrilled by the attention, and when you see him ordering milkshakes, and ordering his hamburger, answering the telephone, or putting pins in the map, that footage is amazing."
Due to his confessions, a number of potentially unsolved cases were closed.
Lucas was sentenced to death for the 1979 murder of an unidentified victim referred to as 'Orange Socks' but George W. Bush stopped it from going ahead due to the uncertainty surrounding the case.
In 2001, he died of a heart attack.
"If we were to take a conservative estimate, 70 to 100 cases are still crediting Lucas for the crime, whether formally or informally. Probably 160 or 170 were never re-investigated, which is an incredible number," Kenner said.
"Hopefully we can get law enforcement at least to re-examine these cases, find out what the truth is and help these poor victims' families."
The Confession Killer debuts on December 6.