Authorities investigating an alleged serial killer in connection with a string of murders in Virginia

• Authorities are investigating an alleged serial killer in connection with a string of murders in Virginia.
• Police called him the "shopping cart killer," because investigators believe he transports the bodies of victims.

Virginia authorities are investigating a man whom they believe is an alleged serial killer, dubbed the "shopping cart killer," because police believe that he uses shopping carts to transport his victims "to their final resting place," local law enforcement announced Friday.

During a press conference, Fairfax County Police Chief Kevin Davis said authorities believe the suspect in custody, Anthony Robinson, 35, met his victims through dating sites, saying the suspect "preys on the weak, he preys on the vulnerable, and he does unspeakable things with his victims."

"The commonality is how did they meet? Dating sites," Davis said. "How were they killed? Trauma to the body. How were they transported to their final resting place? The shopping cart. Hence, shopping cart killer."

He added: "I don't want to give this guy a cape, but that's who he is. He's a killer, he's a serial killer."

In late November, two female victims were identified by police in an empty lot in Harrisonburg, Virginia. Robinson was arrested shortly after the discovery of cell phone records and video surveillance that connected him to the victims, including footage that allegedly showed Robinson using a shopping cart to move the bodies, The Washington Post reported.

Robinson was charged with two counts of first-degree murder in connection with the killings and is currently in custody at the Rockingham County Jail.

Earlier this week, homicide detectives with the Fairfax County Police Department spotted a shopping cart in a wooded area near the remains of two bodies in a large plastic container in Alexandria, Virginia.

One of the bodies found was preliminarily identified to belong to Cheyenne Brown, 29, of Washington, DC, after family members recognized distinctive tattoos on the corpse. Brown was four months pregnant.

The second person's identity has yet to be determined, Davis said during the press conference, given that the "state of decomposition was so bad that it's going to take a little bit of work."

Robinson is currently being investigated as a "person of interest" in connection with the victims discovered on Wednesday but has not been charged in connection with their deaths.

"We know who he is, thank God," Davis said. "But that still doesn't take away from the urgency that exists to identify any other victims that might be out here, literally beyond the Commonwealth of Virginia and up the East Coast."

Representatives from the Fairfax County Police Department did not immediately return Insider's request for comment. A representative from the Harrisonburg Police Department said they have no further comment.