A South Carolina couple who are charged in four slayings have been identified as murder suspects in a fifth homicide investigation in Memphis, Tennessee, a law enforcement official said Thursday.
The pair, Tyler Terry, 26, and Adrienne Simpson, 33, are being held in the Chester County Detention Center in South Carolina. They were arrested about a week apart last month.
Terry and Simpson have been charged with multiple counts of murder, in addition to a slew of assault and attempted murder charges, Grant Suskin, a spokesman for the Chester County Sheriff's Office, said Thursday. They have also been identified in an investigation into a death in Memphis on May 17 that is believed to be a homicide.
"While they are only suspects now, we do believe it is likely that warrants will be obtained for Terry and Simpson in this case," Suskin said. "Our agency and South Carolina law enforcement divisions are working with the Memphis Police Department for the investigation into this case."
Suskin added: "This is definitely unlike anything I've ever seen."
Authorities in Memphis could not immediately be reached for comment Thursday.
Memphis police tweeted May 17 that a "unresponsive male was located in the roadway" and "did not survive his injuries."
NBC affiliate WCNC of Charlotte, North Carolina, reported that the couple are charged with two counts of murder in South Carolina and two counts of murder in fatal shootings in St. Louis County, Missouri.
They are accused of killing Simpson's husband, Eugene Simpson, and a woman who has been identified in court documents as a former romantic partner of Terry's in South Carolina on May 2, WCNC reported.
They also are accused of killing Barbara Goodkin and Sergei Zacharev in about mid-May.
South Carolina authorities arrested Simpson and booked her into jail on May 18. And authorities, after a weeklong manhunt, were able to catch up to Terry, who was hiding in the woods. Officials have said Terry is accused of attempted murder, alleging that he shot at deputies during a high-speed chase led by Simpson.
She was arrested after crashing, authorities said, but Terry managed to get away. The search for Terry involved dozens of officers, helicopters, dogs and drones, officials said.
Joseph Spiess Jr., chief of police in Brentwood, Missouri, last month likened Terry and Simpson to a notorious criminal duo.
"The way this appears is a modern-day version of Bonnie and Clyde," he said.