Ohio serial killer Anthony Sowell was sentenced to death on August 12, 2011 after being convicted of murdering 11 women and dumping their remains around his Cleveland home.
As a registered sex offender, Anthony Sowell checked in regularly with U.S. law-enforcement authorities, who also monitored him by making home visits. But since Sowell wasn't on parole or probation, they didn't have the right to enter - until Oct. 29, 2009, when they had search and arrest warrants after a woman said he had raped her there. That's when they say they discovered badly decomposed bodies in the house.