Murder Suspect Kills Cellmate in County Jail: A Florida man awaiting trial for a second-degree murder charge in the death of his girlfriend will now face an additional first-degree murder charge after allegedly murdering his cellmate three hours after he was placed in his cell.  Brittany Davis of the Tampa Bay Times reports that Scott Greenberg told fellow inmates that he would rather be executed on death row rather than spend his life in prison.  Both inmates were placed in protective custody based on their aggressive behavior while in jail.

Registered Sex Offender Arrested to Face Multiple Murder Charges: Michael Madison, a registered sex offender in Cleveland, will be charged today in connection with the death of three women after their bodies were found over the weekend.  NBC News reports that Madison has confessed to at least one of the murders, and indicated to detectives that he was possibly influenced by Ohio death row inmate Anthony Sowell.  Sowell, also a registered sex offender, was convicted of murdering 11 women in 2009.     

Convicted Felon Suspected in Murder Case: Washington police are looking for a convicted felon they believe is responsible for the murder of a four-year-old boy.  M. Alex Johnson for NBC News reports that the suspect, Trevor Braymiller, shot and killed his girlfriend's son on Sunday, and hasn't been seen since.  Braymiller has an extensive criminal record dating back to 2006 that includes several drug and weapons charges.