Karen Delgado-Yates, 41, was found severely beaten and sexually assaulted in a vacant house on Hickory Street in Lansing on August 29, 2007. A realtor discovered her when showing the property; she was alive at the scene but died en route to the hospital.

Investigators linked the killing to a string of brutal attacks in late summer 2007. Matthew Emmanuel Macon, a 28-year-old parolee, was arrested August 28, 2007, after an attack on Linda Chapel Jackson, who survived when her dog intervened. DNA and subsequent interviews tied Macon to Delgado-Yates’s death and to the murder of 64-year-old Sandra Eichorn two days earlier. He confessed to multiple murders, and a jury later convicted him of two counts of first-degree murder and one count of assault with intent to commit murder.

Police have suspected Macon in up to five other Lansing deaths but he has not been charged in those cases. Did anyone in Lansing know Delgado-Yates or have information about the vacant house on Hickory Street?