Three people were killed and a fourth person was injured in the March 24 shooting on the 600 block of North Adams Street.
READ MORE | 3rd victim dies following quadruple shooting in Wilmington, Delaware
According to the FBI, surveillance video shows the suspects firing at the victims from inside a gray Honda CR-V bearing Florida license plate QVHX48.
Authorities said the vehicle had been reported stolen on March 4 and was recovered several days after the shooting in Chester, Pennsylvania.
The victims who died were identified as Ryan Evans, 19, and Wahkee Tabron, 21, both of Newark, Delaware, and Gina Tiberi, 37.
Anyone with information is asked to contact the Wilmington Police Department Crime Tip Hotline at 302-576-3990 or the nearest FBI office.