Carl Eugene Watts

Carl Eugene Watts (November 7, 1953 – September 21, 2007), also known by his nickname Coral, was an American serial killer dubbed the Sunday Morning Slasher who murdered numerous women and girls over an eight-year period. He is suspected of being the most prolific serial killer in United States history. He died of prostate cancer while serving two sentences of life imprisonment without parole in a Michigan prison for the murders of Helen Dutcher and Gloria Steele.

Watts officially confessed to the murders of 13 women but later claimed he had killed 40 women and also implied that there were more than 80 victims in total. He would not confess outright to having committed these murders, however, because he did not want to be seen as a "mass murderer." Police consider Watts a suspect in 90 unsolved murders, and he is now suspected to have killed more than 100. Provided by Wikipedia