Following an autopsy on Wednesday, police said Diana Alejandra Keel's death was being treated as a murder.
Police questioned Keel's husband Rexford on Tuesday, Maj. Miste Strickland of the Sheriff's Office in Nash County said. At the time he was not charged in the death of his wife and was released. Police say now she does not know where Rexford Keel is, but he could run a 1998 Chevy pick-up, possibly tin or gold in color, with the North Carolina license plates BBM-9232.
Death of the suspect's first wife also investigated
Investigators also cast a second look at the death of Keel's first wife, Elizabeth Edward Keel, who died in 2006 in the same apartment where Keel lives today Statement from the sheriff's office.
The death of 2006 was an accident at the coroner's office, said the Nash County Sheriff's office. An autopsy revealed that she had died after falling at the corner of a concrete step at the front of the house. Strickland told CNN that detectives worked with the FBI and other local authorities to investigate the deaths of both women.