(CNN)Authorities in the DC metro area said Friday a 35-year-old man who was charged last month in the killing of two women may be a serial killer and the prime suspect in the deaths of two more women, as a wide-ranging investigation is underway to determine if there are more victims.

Investigators believe Anthony Robinson, who they have dubbed the “shopping cart killer,” meets his victims on dating websites and allegedly lures them into motels where he then kills them and transports their bodies in shopping carts, Fairfax County Police Chief Kevin Davis said during a press conference Friday. Continue Reading