Irfan Khan / Getty imagesAfter 20 years behind bars, an inmate in Pennsylvania has been released from Death Row. Prosecutors dropped charges of first-degree murder, conspiracy and burglary for Noel Montalvo, who was convicted in 1998 with his older brother for the double murder of his brother’s 44-year-old ex-girlfriend and 37-year-old Manual Ramirez Santana. Instead, Montalvo was charged with evidence tampering. Though DNA evidence showed that Montalvo’s brother was associated with the killings